In the parental generation, inbred black and an albino mice parents mate. The resulting F1 mice are black and heterozygous at 2 different loci. The F2 population consists of black, white, and albino mice. Albino is epistatic to pigmented. What is the phenotypic segregation ratio of this mouse species in the F2 generation? Enter your answer in the format: "4:3:2". Note lack of color pigmentation is recessive.

Answers

Answer 1

Answer:

12:4:3

Explanation:

Let the lack of color pigmentation which is recessive be aa where AA and Aa allow for color (BB, Bb - black, baby - white).

The F1 parents are BbAa x BbAa

This cross will produce 12/16 blacks, 4/16 albinos and 3/16 white.


Related Questions

Select the correct answer.
Why is the Circum-Pacific belt shown on this map called the Ring of Fire?
OF
Aleutian trench
Mt. Garibaldi
Mt St. Helens
RUNG
Kunie trench
Japan trench
izu Ogasawara trench
Ryukyu trench
Philippine
Mt Piatubod trench
Marianas trench
y Mayon
Challenger Deep
Krakatoa
Bougainville trench
FIRE
Middle America
trench
Equator
Java (Sunda)
trench
Tonga trench
Peru-Chile trench
Kermadec trench
ОА.
ОВ.
C.
A fire burns continuously there.
It is prone to earthquakes and volcanoes.
The entire region has a high risk of wildfires.
The best fireworks happen there.
These regions are on the equator and receive direct sunlight.
OD
O E.

Answers

Answer:

B

Explanation:

 The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.  


A method used by family and friends to help an alcoholic confront the disease is

Answers

Answer:

The options are

A. Cooperation

B. Intercession

C. Intervention

D. Codependence

The answer is B. Intervention

Explanation:

The suitable method used by family and friends to help an alcoholic confront the disease is Intervention. These set of people will help him understand the dangers of being an alcoholic and ensure that they help him avoid the triggers that makes such individual drink excessively.

They want to help him overcome the problem so cooperation and codependence is out of context. Intercession isn’t a strict form of confronting a problem such as this.

If you have a concern about fluoride in your drinking water, how do you get more information?

Answers

Answer:

Contact the Centers for Disease Control and Prevention (CDC).

Explanation:

Which of the following statements is true?
A. All matter is made of the same 10 elements.
O B. Every species is made of different elements.
C. All living things are made of the same elements.
D. Every organism is made of different elements.
SUBMIT

Answers

C.All living things are made of the same elements

Which corrections should be made to describe photosynthesis accurately? Check all that apply.

(1) Light energy and chemical energy should be switched.

(1) Chemical energy should be changed to mechanical energy.

(3) Plants that contain chlorophyll should not be included.

(3) Oxygen should be changed to carbon dioxide.

(4) Animals and plants should be switched.

Answers

Answer:

Light energy and chemical energy should be switched.

Plants that contain chlorophyll should not be included.

Animals and plants should be switched.

Explanation:

We have that for the Question,it can be said that the corrections which should be made to describe photosynthesis accurately will have it at the end defined as

Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide  to produce chemical energy.

From the question we are told

Which corrections should be made to describe photosynthesis accurately? Check all that apply.  

(1) Light energy and chemical energy should be switched.  

(1) Chemical energy should be changed to mechanical energy.  

(3) Plants that contain chlorophyll should not be included.  

(3) Oxygen should be changed to carbon dioxide.

Generally

The correct definition of photosynthesis is

Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide  to produce chemical energy.

Therefore

The corrections which should be made to describe photosynthesis accurately will have it at the end defined as

Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide  to produce chemical energy.

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A botanist has acquired a group of pea plants. All of the pea plants have yellow pea pods (the recessive form of this trait) except for one, which has green pea pods (the dominant form of this trait). The botanist decides to use a test cross to determine the genotype of the green pea pod plant for this trait. The botanist performed the test cross and found the following: 50% of the offspring had yellow pea pods and 50% of the offspring had green pea pods. Based on this information, what was the genotype of the initial green pea pod plant

Answers

Answer:

Hetezygous

Explanation:

The genotype of the initial green pod plant would be heterozygous.

Let pea pod color be represented by C (c) alleles.

First, let us assume that the genotype of the green pea pod plant is homozygous dominant, CC. This was crossed with homozygous recessive, cc.

           CC   x   cc

      Cc   Cc   Cc   Cc

All the progeny will have Cc genotype with phenotypically green color. This is in contrast to the result obtained from the test cross in the illustration, hence the genotype of the initial green pea pod plant cannot be homozygous dominant.

Now, let us assume that the genotype is Heterozygous, Cc.

       Cc   x   cc

 Cc   Cc   cc   cc

50% of the progeny has Cc genotype with phenotypically green color while the remaining 50% has cc genotype with phenotypically yellow color. This is consistent with the result from the illustration.

Hence, the genotype of the initial green pea pod plant is heterozygous.

A study from the National Institutes of Health states that the human body contains trillions of microorganisms that make up 1% to 3% of the body's mass. Use this information to estimate the average mass of a microorganism.

Answers

Answer:

If the mass of the human body is 60 kg so the average mass of microorganism is 1.2 kg.

Explanation:

If we suppose the mass of human body is 60 kg and we know the percentage that is 1 to 3% so we will take the average microorganism mass of which is 2%. So by doing multiplication of 60 with 2 and then divided by 100, we get 1.2 kg. The reason for dividing by 100 is that the average mass present in percentage form so for converting the percentage into standard form we have to divide it by 100. So we conclude that in every human with a mass of 60 kg have 1.2 kg microbes present in their body.

What happens during telophase of the cell cycle? A. Chromosomes are pulled apart. B. Chromosomes line up. C. Chromosomes uncoil and the nucleus reappears. D. Chromosomes condense

Answers

Answer:

C. Chromosomes uncoil and the nucleus reappears.

Explanation:

Answer: C. Chromosomes uncoil and the nucleus reappears.

Explanation:

Telophase is the final stage of the cell cycle which involves the separation of daughter cells.

Hope it helps .

These five concepts provide a modem interpretation of Mendelian postulates.
- Inheritance is governed by information stored in discrete factors called genes.
- Genes are transmitted from generation to generation on vehicles called chromosomes.
- Chromosomes, which exist in pairs in diploid organisms, provide the basis of biparental inheritance.
- During gamete formation, chromosomes are distributed according to postulates first described by Gregor Mendel, based on his nineteenth-century research with the garden pea.
- Mendelian postulates prescribe that homologous chromosomes segregate from one another and assort independently with other segregating homologous during gamete formation.
Based on these concepts, choose statements that correlate Mendel's four postulates with what is now known about genes, alleles, and homologous chromosomes.
Select the five correct statements.
a. Some gene pairs on nonhomologous chromosomes can aggregate after separation and mitosis or meiosis would stop.
b. Some genes have dominant and recessive alleles.
c. Unit factors occur in pairs.
d. Some possible gametic combinations are formed with higher probability if dominant alleles take part in meiosis.
e. During mitosis and meiosis, when chromosomes are visible in their characteristic shapes. members of a homologous pair have different sizes and exhibit opposite centromere locations.
f. Different gene pairs on non-homologous chromosomes will separate independently from each other during meiosis.
g. Alleles segregate from each other during gamete formation at anaphase
h. Dominant alleles can become codominant alleles during mitosis.
e. One gene pair separates independently from other gene pairs.

Answers

Answer:

b. Some genes have dominant and recessive alleles.

C. Unit factors occur in pairs.

e. During mitosis and meiosis, when chromosomes are visible in their characteristic shapes. members of a homologous pair have different sizes and exhibit opposite centromere locations

f. Different gene pairs on non-homologous chromosomes will separate independently from each other during meiosis.

g. Alleles segregate from each other during gamete formation at anaphase

Explanation:

Mendel's postulates of inheritance are: (1) Principles of Paired Factors (2) Principle of Dominance(3) Law of Segregation or Law of Purity of Gametes (Mendel’s First Law of Inheritance) and (4) Law of Independent Assortment (Mendel’s Second Law of Inheritance).

Each of these laws provide information on how inheritance of traits by offspring from parents occur.

Principle of paired factors:

A character is represented in an organism (diploid) by at least two factors. The two factors lie on the two homologous chromosomes at the same locus or position.

Principle of Dominance:

Dominant characters are those which always appear in every generatio whereas recessive characters may not appear in some generations e.g. F1 generation.

Law of segregation:

During the formation of gametes (egg or pollen), the paired genes separate or segregate randomly so that each gamete receives one or the other with equal likelihood

Law of Independent assortment:

During gamete formation, segregating pairs of unit factors (genes) assort independently of each other.

From the above consideration,

Option A is wrong because it doesn't correlate with the law of Independent assortment

Option B is correct based on the second postulate

Option C is correct based on the first postulate

Option D is wrong based on the law of segregation which assigns equal likely to gene separation

Option E is correct based on recent studies of genes

Option F is correct based on the law of Independent assortment

Option G is correct based on recent studies on genes

Option H is wrong because dominant genes remain dominant. Co-dominance occurs when allelic pairs are neither dominant nor recessive

Option 'e' is wrong because independent assortment occurs between pairs of genes with contrasting character not a gene pair having the same character where only segregation occurs.

RNA and dna are both what?
A. Made up of nucleotides and carry molecules from on end of a cell to another.
B. Monomers of protein molecules that provide structure to a cells nuclear membrane.
C. Protein molecules that carry the unique genetic information of an organism.
D. Molecules that contain genetic information and are made up of nucleotides.

Answers

Answer:

I think it is a

Explanation:

Karl wants to devise a green and novel way to power some LEDs in a swimming pool as part of his science project. Consider the swimming pool when its in use to be a model of the ocean. Which form of renewable energy will he be able to generate from the swimming pool? A. tidal B. wind C. wave D. geothermal

Answers

Explanation:

I doubt between options b and c

Answer:

Wave

Explanation:

I just took the test on plato and it was correct :)

How N-formylmethionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA.

Answers

Answer:

Different transfer RNAs (tRNAs) selectively bind to N-terminal and internal AUG codons of bacterial polypeptides .

Explanation:

In prokaryotic organisms, N-formylmethionine (fMet) is coded by the start codon (AUG), thereby generating the most N-terminal residue of bacterial proteins. This residue (fMet) is a modified methionine amino acid that contains attached a formyl group to its amino group. Remarkably, it has been shown that formylmethionyl-tRNA only can bind to this initial AUG codon, while methionyl-tRNA binds to internal AUG codons.

Plato: Select the correct answer. Which strategy would help veterinarians avoid burnout? A. continuing education B. increasing involvement at the workplace C. meditation D. neglecting work duties

Answers

Answer:

i believe your answer is a

Explanation:

What phase does homologous chromosomes are separated

Answers

Answer:

Anaphase 1

Explanation:

Gonorrhea is a sexually transmitted infection (STI) caused by the diplococcus Neisseria gonorrhoeae, commonly called gonococcus (GC). This organism developed resistance to penicillin and tetracycline in the 1980s, after which fluoroquinolones were the recommended drugs for treating GC. Subsequent resistance to the fluoroquinolones has led to the current recommended treatment of injected ceftriaxone in combination with oral azithromycin. Although this approach continues to be effective, recent data from the CDC indicates that resistance to azithromycin is emerging.Fluoroquinolones act by inhibiting DNA gyrase, an enzyme involved in DNA replication. Resistance to this antibiotic is most commonly by a. due to a mutation in the gene that encodes RNA polymerase, an example of adaptive resistance. b. a change in the DNA gyrase target, an example of acquired resistance increased efflux of the drug from the target cell, an example of innate resistance. c. a change in the DNA gyrase target, an example of innate resistance. d. enzymatic modification of the ribosomal target, an example of innate resistance.

Answers

Answer:

The correct answer is option b, that is, a modification in the target of DNA gyrase, is an illustration of acquired resistance.

Explanation:

The activity of DNA gyrase gets inhibit by fluoroquinolones. The enzyme that combines with the DNA and prevents its supercoiling at the time of replication is termed as DNA gyrase. It is a heterotetramer, which is formed of two subunits of GyrA and two subunits of GyrB. Due to the mutation in gene gyrA, the development of resistance takes place in N. gonorrhea against fluoroquinolones.  

Post mutation, gyrA exhibits lesser binding capacity with the fluoroquinolones, and thus, the development of resistance takes place within the bacteria against the fluoroquinolones. The phenomenon of the development of resistance taking place in any microbe against the specific antimicrobial agent for whom it was vulnerable before is termed as acquired resistance, thus, the given case is an illustration of acquired resistance.  

7. A similarity between New Zealand and Australia is that- *

the native populations in both countries are the Aboriginies.

the monarch for both countries is Queen Elizabeth II.

neither country depends on tourism to boost their economy.

the nickname "Kiwi" refers to both Australians and New Zealanders.

Answers

Answer:

the monarch for both countries is Queen Elizabeth II.

Explanation: They are Island nations of the south Pacific.

The two countries were colonized  by Abel Tasman, but were colonized by the British.Therefore recognized the Queen as the monarch. They both have a stable society and progressive movements. Both countries have good standard of living, with high sense of innovation and share almost the same type of food, wines, culture and music. They also have one of the best Diary  farms in   the world. They love the same sports-Rugby.

which feature of a membrane describes wether molecules can cross the membrane​

Answers

Answer:

Permeability

Explanation:

Membranes are semi-permeable that only certain things can come cross on its own. This feature of permeability describes whether molecules can cross the membrane​

Albumin is a protein that is found in eggs.
Which of the following describes the structure of albumin?
Choose 1 answer:
A molecule containing carbon, hydrogen, and oxygen in a 1:2:1 ratio
B
A chain of amino acids folded and twisted into a molecule
Three fatty acids attached to one glycerol molecule
D
A series of nitrogenous bases attached to a sugar-phosphate backbone

Answers

Answer:

B

Explanation:

Proteins are organic compounds containing carbon, hydrogen, oxygen, and nitrogen. Amino acids are compounds that consist of an R group, carboxylic acid end, and amino end. A chain of amino acids is referred to as a protein.

The statement 'a chain of amino acids folded and twisted into a molecule' describes the structure of albumin (Option B).

Proteins are macromolecules composed of a long sequential chain of amino acids linked together by peptide bonds.

All proteins must be twisted and folded by a cellular mechanism called protein folding, which becomes an inactive polypeptide chain into a functionally active protein.

Protein folding modifies the tridimensional (3D) conformation of a protein in order to become it into a biologically active molecule that performs specific functions (e.g., an enzyme with catalytic functions).

In conclusion, the statement 'a chain of amino acids folded and twisted into a molecule' describes the structure of albumin (Option B).

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can you used chmical reagents for chromatography and why? ​

Answers

Yes you can use chemical reagents, because all chemicals are hypnotic

What are the use of igneous rocks

Answers

Answer:

Igneous rocks have a wide variety of uses. One important use is as stone for buildings and statues. Diorite was used extensively by ancient civilizations for vases and other decorative artwork and is still used for art today. Granite is used both in building construction and for statues.

3. How do genes control the functioning of cells and our characteristics?​

Answers

Answer:

A gene is a short section of DNA. your genes contain instructions that tell your cells to make molecules called protein

Answer:

Basically gene produces a functional product such as a protein which regulates the functioning of our cells via carrying out different processess.

Explanation:

Genes are short segments of our DNA that code for functional products such as proteins. Proteins basically do everything in your cells and your phenotype (what you look like and how you cells behave) everything is controlled by these functional products that a gene makes.

Explain the link between climate change and globalization.

Answers

Answer:

La globalización hace más vulnerable la economía al cambio climático. La susceptibilidad de la red económica global al estrés por calor de los trabajadores se ha duplicado en la última década, según concluye un nuevo estudio publicado en la revista 'Science Avances'

Explanation:

Humus represents _____ of the soil composition to 5% b) 60% c) 25% d) 15% e) 50%

Answers

Answer:

The correct answer is B, 60%

Explanation:

Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur

You are doing an experiment and plated E. coliin different medias. Media A has onlyglucose, B has only lactose, and media C has both glucose and lactose.You notice that some of the cultures grown in media C are metabolizinglactose. Which type(s) of mutation(s) could cause this to occur

Answers

Answer:

A. Glucose:

As lactose is absent will follow the glucose metabolism, so the lac repressor will hold tightly with the operator which leads to the prevention of transcription as RNA polymerase can not bind to promoter so no lactose metabolism.

B. lactose:

In the case or wild mutant lactose metabolism will occur as lactose is present, allolactose binds to the lac repressor thus the operator and promoter are free so transcription starts.  The same result will be in all test except in the case of a mutant repressor.

C. glucose and lactose:

In this case, diauxic growth will occur. This growth takes place when two sugars are present in the media. The preferred sugar will be consumed first That is glucose. Then a lag phase will come which will be followed by the second sugar metabolism that is lactose.  the given two cases :

Lactose will be metabolized first, as operator site mutation prevents repressor protein binding and thus will lead to the constitutive synthesis of lac operon in test B.   The same thing will happen, as in this case also, constitutive synthesis of lac operon will happen in test C.

Cultures grown in the presence of both glucose and lactose are metabolizing lactose. In the test (b) and (c) will be responsible due to constitutive synthesis of lac operon will happen.

Does specific heat also mean the amount of energy needed for cooling, or is it only energy for heating?

Answers

Answer:

yes it does

here is a more clearer explanation

Explanation:

The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.

Some other examples of specific heat capacities are:

Material Specific heat capacity (J/kg/°C)

Brick 840

Copper 385

Lead 129

Lead will warm up and cool down fastest because it doesn’t take much energy to change its temperature. Brick will take much longer to heat up and cool down. This is why bricks are sometimes used in storage heaters as they stay warm for a long time. Most heaters are filled with oil (1,800 J/kg°C) or water (4,200 J/kg°C) as these emit a lot of energy as they cool down and, therefore, stay warm for a long time.

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C).

Yes it also means the amount of energy needed for cooling

_________10. Which of the following groups of plants carry out light dependent and light independent reactions of
photosynthesis in separate cells?
A. Plants with chlorophyll C. C3 – plants
B. CAM Plants D. C4 – plants

Answers

Answer:

Plants with chlorophyll

Which is the biggest disadvantage of using unipotent cells for medical
treatments?

Answers

They can only be used to create specific types of cells.
It can only be used to create a different types of cells (google/answers.com)

Which current is a warm ocean current that flows completely around Earth?

a) North Equatorial Current
b) California Current
c) West Wind Drift
d) Gulf Stream

Answers

Answer:

gulf stream

Explanation:

it transports warm water from the equator past the east coast of north america and across the atlantic to europe

The map of ocean currents shows that the surface ocean currents create loops called gyres. The Gulf stream current is a warm ocean current that flows completely around Earth.

What is gulf stream?

Gulf stream is a strong ocean current bringing warm water into Atlantic ocean to Gulf of Mexico.

The Gulf Stream is in the western North Atlantic Ocean. It moves north with the coast of Florida and then moves eastward off of North Carolina, flowing northeast across the Atlantic.

Thus, the correct option is d.

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The image to the left shows Earth's major plates. A
geologist is studying a plate boundary indicated by the
arrow
Fill in the blank to complete the statement about the
plate boundary
This boundary is between the African Plate and the
Plate

Answers

Answer:

Its Eurasian

Explanation:

This boundary is between the African Plate and the Eurasian Plate.

This boundary is known as a convergent plate boundary. Convergent plate boundaries occur when two tectonic plates move toward each other.

In the case of the African Plate and the Eurasian Plate, they are colliding, and one plate is being forced beneath the other in a process called subduction.

As the plates converge, the intense pressure and friction cause seismic activity, leading to earthquakes and volcanic eruptions in the region.

These collisions also result in the formation of mountain ranges, such as the Himalayas, as the crust is pushed upward and folded.

Studying this convergent plate boundary is essential for understanding the geological processes shaping our planet's surface and the associated hazards like earthquakes and volcanoes.

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Which organ system
provides oxygen so that
exercising muscle fibers
can efficiently produce
ATP?​

Answers

Answer:

lungs

Explanation:

idk if I'm correct I'm just guessing

respiratory and cardiovascular
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