Answer:
Explanation:
A. To produce all purple flowers from a cross between purple and white flowers, it means the parents genotype are dominant homozygous purple and the recessive homozygous white ( PP and pp)
B. The F1 generation will possess a phenotype of purple colour with genotype ( Pp )- heterozygous
C. Organisms with two copies of the same allele are called homozygotes
D. Organisms with two different alleles are called heterozygotes
2. When is it necessary to perform a test cross?
This test is only perform when the identity/genotype of one of the parents is unknown then a testcross is carried out.
3.A The coat color of the female he must use is white...a testcross is done with the recessive parents
B. The genotype of the male brown rabbit is Bb to produce a white rabbit.
4. The law of independent assortment amd meiosis relates in that the independent assortment law talks about independent separatíon of gens from each other and in meiosis, it takes into account the independent separation of homologous chromosomes.
5. The law of segregation of genes takes into account that an individual that is diploid possessing 2 copies of a gene/alleles on each homologous chromosome, that each of these alleles segregation or separate into each gametes, as one allele per gamete.
5. Non-Mendelian inheritance includes all listed below
6.
1. When a gene has more than two allele variants - multiple alleles
2. When a single gene or allele controls the expression of 2 or more traits - Pleitropy e.g. as in the ABO blood group
3. When offspring show a blended phenotype, a physical appearance intermediate to the phenotype of both parents: incomplete dominance
4. When an allele is carried in the X chromosome - X linked inheritance
Answer: the biological
Explanation: the biological
The first line of defense involves which structure(s)?
O T-cells
O skin
O blood
O B-cells
Mark this andretum
Next
Submit
Answer:
skin.
Explanation:
the first line of defense uses physical parts such as skin.
Which step of the scientific method do you perform after you collect data and
observations?
Answer: Draw a conclusion about your hypothesis
Explanation:
If the results match up, then the data supports the hypothesis and thus, the hypothesis itself SUPPORTS the idea that you're studying. Afterward, discuss the experiment with your peers.
Never say that a hypothesis has been proven, because you are not proving anything, it is support.
In tomatoes, dwarf (d) is recessive to tall (D), and opaque (light-green) leaves (op) are recessive to green leaves (Op). The loci that determine height and leaf color are linked and separated by a distance of 7 m.u. For each of the following crosses, determine the phenotypes and proportions of progeny produced.
A. D Op/ d op*d op/d op
B. D op/ d Op*d op/d op
C. D Op/d op*D Op/op d op
D. D op/d Op*D op/d Op
Answer:
a). D Op / d op X d op / d op –Parents
as we know,
Distance (m.u.) = Recombination frequency (%)
D Op / d op genotype produces 4 types of gametes as below:
Recombinant gametes (7%):
D op = 3.5% , d Op= 3.5%
Non-recombinant gametes (93%):
D Op= 46.5% , d OP =46.5%
Genotype, d op / dop produces only one type of gametes, d op.
d op
D OP (46.5%) D OP/d op (46.5%) = Tall, green
D op (3.5%) D op/d op (3.5%) = Tall, opaque
d OP (3.5%) d OP/d op (3.5%)= Dwarf, green
d op (46.5%) d op/d op (46.5%) = Dwarf, opaque
b). similarily D op / d Op X d op / d op –Parents
Distance (m.u.) = Recombination frequency (%)
D op / d Op genotype produces 4 types of gametes similarily as in case a,
Genotype, d op / dop produces only one type of gametes, d op.
d op
D OP (3.5%) D OP/d op (3.5%) = Tall, green
D op (46.5%) D op/d op (46.5%) = Tall, opaque
d OP (46.5%) d OP/d op (46.5%)= Dwarf, green
d op (3.5%) d op/d op (3.5%) = Dwarf, opaque
c). D Op / d op X D Op / d op -----Parents
D Op / d op genotype produces 4 types of gametes as below:
Recombinant gametes (7%):
D op = 3.5% = 0.035 , d Op= 3.5%=0.035
Non-recombinant gametes (93%):
D Op= 46.5%=0.465 , d OP =46.5%=0.465
The table is attached for C.
d). D op / d Op X D op / d Op –Parents
Distance (m.u.) = Recombination frequency (%)
siliarily as a, b, and c gametes are four with the same frequency and table for the answer is attached
Recombinant gametes (7%):
D op = 3.5% = 0.035 , d Op= 3.5%=0.035
Non-recombinant gametes (93%):
D Op= 46.5%=0.465 , d OP =46.5%=0.465
If the current trend continues, can the temperature be expected to increase/decrease or stay the same in the next twenty years? Anssssswer please only 8 minutes left !!!
Answer:
Increase
Explanation:
During digestion fat is broken down into
Answer:
Lipase
Explanation:
Lipase enzymes break down fat into fatty acids and glycerol. Digestion of fat in the small intestine is helped by bile, made in the liver.
reaaallly need help!!
Explanation:
this is very easy I will try and send this picture
01:50:51
A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how
the cell could be classified?
The cell is prokaryotic her
has DNA
The cell is a plant cell as animal cells do not have chloroplasts
Answer:
The answer is D.) The cell is eukaryotic because it has chloroplasts.
You are running an experiment to study seed germination and accidentally left a dish of seeds covered with a little water in a totally dark room. When you return a few days later, you notice that the seeds have sprouted long roots and long shoots. What was the source of most of the matter that makes up these roots and shoots?A. oxygen in the airB. carbon dioxide in the airC. water in the dishD. glucose in the seed
Answer:
D. glucose in the seed
Explanation:
Plants generally make their food through the process of photosynthesis in the presence of sunlight by utilizing carbon-dioxide and water and produces oxygen and carbohydrate.
But due to the absence of sunlight, plant will be unable to use carbon dioxide and water for photosynthesis and oxygen is a by-product.
So the reason of seed germination is the presence of glucose in the seed. Seeds generally germinate through the process of inhibition, that require uptake of water. Glucose works as energy source in humans and plants as well. sugar or glucose allow the seed to utilize the water and help foster its growth.
Hence, the correct option is D. glucose in the seed.
TP53 is a recessive gene and is not located on the X chromosome, why would people who inherit just one mutant copy of a recessive tumor-suppressor gene be at higher risk of developing cancer than those without the recessive gene?
Answer:
Explanation:
Since it is a recessive gene, tumor suppressor genes required the inactivation of both alleles, this is usually accomplished by the mutation of one allele and a targeted homozygous deletion of the second allele. This leads to an effective inactivation of the suppressor genes with the mutations acting a a dominant negatives. This way, patients are put at a higher risk of developing cancer
Which of the following removes waste from the body through perspiration? blood kidneys skin large intestine
Answer:
Kidneys, skin and large intestine. Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes, and together they make up the excretory system. The skin plays a role in excretion through the production of sweat by sweat glands.
Explanation:
Answer: SKIN
Explanation: Perspiration is the process of sweating so your skin does that
ASAP PLEASEEE HELP ME
Remember monomers and polymers? DNA is what type of polymer?
A.) Protein
B.) Nucleic Acid
C.) Lipid
D.) Carbohydrate
Answer:
polynucleotide "carbon" sugar so I would say B or D
Explanation:
Which type of mutation is likely to have the least affect on an organism
Answer:
Point Mutations
A point mutation—the change of a single nitrogen base in a DNA sequence—is usually the least harmful type of DNA mutation
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A negative control is a sample that you know will give you a negative result. You are testing for the presence of proteins, reducing sugars, starch, and lipids in various foods. What would be the best negative control for this experiment
Answer:
Starch and water will be the best negative control
Explanation:
Negative control sample is a sample that will not give change in an experiment.
Starch and water will be the best negative control. This is because, starch is broken down by HCl to monosaccharides in the Benedict test which is the test for reducing sugar
Distilled water remain a negative control because it remain blue which means it does not reduce sugar with starch solution.
Water plus us a negative control for Buiret test (protein) and Benedict(reducing sugar) because it does not indicate the presence of protein and reducing sugar.
Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: anterolateral system (spinothalamic tracts). vestibulospinal tract. reticulospinal tract. spinocerebellar tracts.
Answer:
Spinocerebellar tracts.
Explanation:
Spinocerebellar tracts are afferent neurons that transmit proprioceptive information from the peripheral nervous system ( muscles and joints propricetors) to the cerebellum. It originated from the spinal cord and end at the cerebellum. It carry unconscious proprioceptive sensory information from the muscles, organs to the cerebellum.
what is evapraratio
Answer:
Evaporation is the process by which water changes from a liquid to a gas or vapor, in other words evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
24. Explain why water shortages occur frequently in
parts of New York State even though the water
supply is nearly constant. [1]
Answer:
Water is an essential element of life. Water is life and it has a lot of functions such as for drinking and other domestic purposes. There could however be water shortage in some parts of Nee York states as a result of country as a result of the effects of drought due to low amount of rainfall in the area.
There may also be issues with the various instruments which helps in the transport of water to homes which could also lead to the shortage.
Shortages occur frequently in parts of New York State even though the water supply is nearly constant as there are some issues with the water transport system and also low rainfall in some areas.
What is the way of water transportation?There can be several methods by which water transportation can be made easy.
Methods of transportation are included under three categories:
Aqueducts: it involves pipelines, canals, tunnels and bridges. Container shipment: it involves tank truck, tank car, and tank ship. Towing: it includes a tugboat is used to pull an iceberg or a large water bag along behind it.Shortages occur frequently in parts of New York State even though the water supply is nearly constant as there are some issues with the water transport system and also low rainfall in some areas.
Thus, this can be the reason behind water shortage in New York.
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You come upon an outcropping of sandstone while working in the field in Southern Utah. You notice cross-beds. Which of the following would you be able to determine about this deposit, just from looking at it? Group of answer choices A.the complete mineral composition of the sandstone B.the direction of the wind at the time it was deposited C.the tectonic history of the deposit D.the origin of the sand in the deposit
Answer:
B. the direction of the wind at the time it was deposited
Explanation:
Cross beds refers to those rock beds which are formed due to the deposition of bed forms such as dunes. These cross beds are the group of inclined layer which is formed due to the flowing of water or wind. These rock beds represents the movement or direction of wind and water at the time of deposition and as a result cross beds are formed. So we can say that cross beds were formed due to the direction of wind.
Building large manufacturing facilities can affect
ecosystems by increasing the
Answer:demand for resources such as fossil fuels
Explanation:
Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
Thus, The breakdown of buried, carbon-based organisms that perished millions of years ago produces fossil fuels. They produce deposits rich in carbon, which are taken out and burned to provide energy.
They presently provide about 80% of the world's energy and are non-renewable. A vast array of items, including plastic and steel, are also produced using them. Coal, oil, and gas are the three forms of fossil fuels.
Global warming is mostly caused by emissions from fossil fuels, according to the Intergovernmental Panel on Climate Change (IPCC). 89% of the world's CO2 emissions in 2018 came from industry and fossil fuels.
Thus, Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
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In the lab on Trophic Interactions you were looking at behavior of mosquito larvae. The question being asked was: Does prey behavior change in the presence of a predator? What would be an appropriate null hypothesis for this experiment? Recall in Treatments 2 and 3, a predator was added to the mosquito tanks.
Answer:
Null hypothesis: the behavior of mosquito larvae doesn't change in the presence/absence of predators added to the tanks in Treatments 2 and 3.
Explanation:
In statistics, the null hypothesis states that there are no differences between the two variables tested in the experiment, while the alternative hypothesis uses the experimental data in order to reject the null hypothesis. In this case, the alternative hypothesis will use the data from treatments 2 and 3 to confirm that predators can modify the behavior of mosquito larvae.
Anaplerotic reactions serve to:__________.
a) divert materials out of the citric acid cycle for use in biosynthesis.
b) regulate energy production by bypassing the citric acid cycle.
c) replenish the citric acid cycle if it becomes depleted of intermediates by biosynthetic demands.
d) produce pyruvate, which initiates the cycle when glucose degradation is not occurring.
Answer: Option C.
replenish the citric acid cycle if it becomes depleted of intermediates by biosynthetic demands.
Explanation:
Anaplerotic reactions that form intermediates for kreb cycle, citric cycle. They form intermediates for metabolic pathways like citric cycle. The citric cycle is important for energy production and biosynthesis. Anaplerotic reactions help to restore or replenish intermediates in citric cycle if there is depletion of intermediates biosynthetic demands.
Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain you have filled every blank with a term before clicking Submit.
Nairobi ______ is the capital of Norway.
Buenos The capital of Canada is______
Aires ______is the capital of Indonesia.
Canberra ______is the capital of Australia.
Ottawa The capital of Kenya is________
Jakarta The capital of Argentina is______
Answer:
Oslo is the capital of Norway.
The capital of Canada is Ottawa.
Jakarta is the capital of Indonesia.
Canberra is the capital of Australia.
The capital of Kenya is Nairobi.
The capital of Argentina is Buenos Aires.
Explanation:
Oslo is the capital of Norway.
Being the biggest city of Norway, Oslo was made the capital of the country. It is also the most populous city in the country and is the main governmental and economical center of the nation.
The capital of Canada is Ottawa.
Chosen because of its location, the city of Ottawa was chosen by Queen Victoria to be the capital of Canada. It is the central point of access between the cities of Montreal and Toronto, and despite it's smaller status as a city, it was chosen as the capital due to its prominence in the location.
Jakarta is the capital of Indonesia.
Jakarta, located on the island of Java, is the capital of Indonesia. Formerly known as Batavia, this city was the official Dutch settlement during the colonial times. Now, it is presently the capital of the nation.
Canberra is the capital of Australia.
Despite Australia having numerous capital cities according to the boundary or seat of government it has, the city of Canberra is more regarded as the capital of the island nation. It is the largest inland city of the country and has numerous important government offices in it.
The capital of Kenya is Nairobi.
The biggest city in the Kenyan nation, the city of Nairobi is the capital of Kenya. The Nairobi River flows through the city, from which the Maasai name of the city Enkare Nairobi is attributed.
The capital of Argentina is Buenos Aires.
Buenos Aires is the capital of Argentina. It is also the largest city in the Latin nation and is home to numerous multi-nationals from various ethnic groups.
Some parts of the worlds rainforests haven’t been studied closely, and may contain species of plants which have benefits for humans. ‘Suggest and explain uses of stem cells taken from the meristem of a new species of plant.’
To determine the similarity of stem cells of one species of plant with that of another: By determining the similarity between the stem cells taken from two different species, it can be identified whether there is a possibility of clowning, of giving birth to new and improved species of plants that are beneficial for mankind, or that of interchanging the stem cells to boost up or slow down the growth of the plants. To determine whether the stem cells can be altered and reintroduced to make the plants grow in a specified manner: By altering and modifying the stem cells and reintroducing them back again, it is possible to restrict the growth of the plant to a specific size or shape. This trait of the stem cells can be used to make the plantation possible in compact areas as well as to grow the plants in the desired shapes.
To determine whether the speed of division of cells at the roots and appendages of the plant can be modified: By restricting or boosting the speed of the division of meristem cells using modified stem cells, the plant can be made to grow faster in a specific season and slower in another. This feature can be used to lower the vulnerability of the plant species towards various natural weathering actions.
Stem cells extracted from the meristem can be precisely examined for their effectiveness against illnesses that harm portions of the plants such as the roots, shoots, and appendages to ascertain the resistance against various plant diseases.
What is meristem?They can thus also be utilized to rebuild the damaged plant tissues if the newly discovered species becomes extinct.
It can be determined whether there is a chance of clowning, or of giving birth to new and improved species of plants that are beneficial to mankind.
Therefore, Stem cells extracted from the meristem can be precisely examined for their effectiveness against illnesses that harm portions of the plants such as the roots, shoots, and appendages to ascertain the resistance against various plant diseases.
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1. An oak tree is adapted to grow in a wood. Which of the following is NOT
true?
A)It has a large root system to absorb water and minerals
B)It has a large root system to anchod the tree
C)It has plenty of leaves to absorb sunlight
D)It loses its leaves in autumn to save food
Answer:
(B) it has a large root system to anchored the tree
You have decided to examine the dynamic properties of a flagellum. After having isolated flagella from sea urchin sperms, you placed them into an aqueous buffer with a pH of 7.0. Very rapidly, however, you observed that the movement of the isolated flagella stopped. Which hypothesis are you likely to propose to explain that result?
Answer:
Osmosis
Explanation:
In this case, osmosis has occurred, and that is why the movement of the flagellum stops.
It should be understood that osmosis is the movement of substances from the region of lower concentration to the region of lower concentration through a semi- permeable membrane.
Some scientists who are Christians have developed a theory called ___________ to explain the creation and development of life on earth.
Intelligent Design
fossil formation
relativity
Answer:
Intelligent Design
Some scientists who are Christians have developed a theory called Intelligent Design to explain the creation and development of life on earth.
However, in my opinion its complete nonsense
Where do sperm mature?
O A. Epididymis
O B. Urethra
O c. Seminiferous tubules
O D. Vas deferens
Answer:
A.
Explanation:
Sperm migrate from the seminiferous tubules to the epididymis.
You have isolated a new mutation in the T4 bacteriophage rII A gene and you map its location within the gene by recombination frequency. You find that this new mutation fails to give wild type recombinants with several different adjacent mutations located in the same gene. What type of mutation is this new one you just isolated
Answer:
A lethal mutation, thereby the resulting phenotype is not observed .
Explanation:
Lethal mutations are the result of genomic changes that may be lethal in certain conditions. In genetic research, this type of mutation has shown to be very useful in analyzing gene function (i.e., genes whose protein products are key for the survival of the organism in question), and they are perfect gene markers. In bacteriophages, for example, temperature-sensitive mutants of phage T4 that can not grow at temperatures higher 42°C have been identified (Edgar & Lielausis 1964).
Citation:
R. S. Edgar, & I. Lielausis (1964). Temperature-sensitive mutants of bacteriophage T4D: their isolation and genetic characterization. Genetics, 49(4), 649.
You are working with an amateur bodybuilder who is 12 months out from a bodybuilding competition. Design a year-long periodized training program for the athlete with the objective of optimizing the client’s physique at the time of the competition. The training program should include the following:A list of assessments to be performed at the onset of the training programA warm up and cool down for each training dayA detailed year-long periodized training program including specific exercises, sets, repetitions, suggested rest times, etc. The program should include a Foundational Training phase, a Hypertrophy phase, and a Cutting phase.An explanation as to why you made your recommendations for each phase of training.Nutrition and supplement recommendations to support the bodybuilder during each phase of training.
Female honey bees are diploid and male honey bees are haploid. The haploid males produce sperm and can successfully mate with diploid females. Fertilized eggs develop into females and unfertilized eggs develop into males. How does the process of sperm production in male honey bees differ from sperm production in other animals?
a. Male honey bees use meiosis I only, whereas other animals use both phases of meiosis.
b. Male honey bees use meiosis, whereas other animals use mitosis.
c. Male honey bees use mitosis, whereas other animals use meiosis.
d. Male honey bees can use mitosis or meiosis, whereas other animals can only use meiosis.
Answer:
The correct answer is option C.
Explanation:
In most of the male animals the production of sperms takes place through the process of meiosis. Meiosis occurs only in 2n or diploid cells. Thus the most of the animals produce sperm due to their diploid nature.
In male bees the sperm production is different than other animals as it is haploid cell and haploid cells produce sperms through mitosis. In haploid cells mitosis helps in produce more sperms.
Thus, the correct answer is option C.
Relaxation of the diaphragm muscle plays a major role in expanding the lungs.
True
False
Answer:
False
Explanation:
You relax the diaphragm muscle by exhaling. When the diaphragm muscle is relaxed, the lungs contract. When the diaphragm muscle expands, the lungs also expand. Therefore, relaxation of the diaphragm muscle does NOT play a major role in expanding the lungs.
