The purpose of "crossing over" is
A. to add genetic diversity
B to pull the chromosomes away from each other
C to make identical copies of the parent cell
D to help dissolve the nuclear membrane

Answers

Answer 1
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity. During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material.

Related Questions

Osmosis is defined as movement of SOLVENT across a ___________ membrane

Answers

Answer:

Osmosis is defined as movement of SOLVENT across a semipermeable membrane.

Explanation:

Hope this helps!

What do these do ?
Kidneys, bladder, liver

A. Transports nutrients and oxygen to the body, removes waste

B. Sends chemical messages for growth, reproduction, and
: Kidneys, bla energy processes

C. Filters the blood to removes toxins, excess water, and other
wastes

D. Works with skeletal system to procide movement, helps
digest food, pump heart, and move blood through veins
temperature, detects stimuli fro

E. Produces sex cells (sperm and ovum), nurtures and protects growing fertilizer egg

F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement

G. Community communications with and controls all other body systems, response to stimuli from inside and outside the body

Answers

Answer:

C

Explanation:

The kidneys are bean shaped organs about the size of an adult fist. Most people are born with two kidneys. They are located on each side of the backbone, against the back wall of the abdomen, at about the level of the lowest rib.

The liver detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion. Its other roles include the regulation of glycogen storage, decomposition of red blood cells, and the production of hormones. It is also the largest internal organ in the body.

HELP ASAP!!!
Proteins are a type of biomolecule with a wide variety of functions. Which statement is correct about the digestive system and proteins?

Question 1 options:

Enzymes in your saliva start breaking down the carbohydrates in food


Ready to use energy is released as the protein is broken down


The large intestine absorbs proteins for use in cells.


The liver manufactures bile salts that help break down fats in proteins

Answers

Answer:

Enzymes in your saliva start breaking down the carbohydrates in food

Explanation:

It makes sense, your digestive system consists of your mouth, esophagus, stomach, pancreas, liver, gallbladder, small intestine, large intestine, and anus. As soon as you put food in your mouth you break down your food. Also I took the test, hope you make an good grade!!!

The statement 'enzymes in your saliva start breaking down the carbohydrates in food' is correct about the digestive system and proteins.

The digestive system is an organ system where organs work together to digest foods.

Enzymes are specific proteins that carry out specific chemical reactions.

Digestive enzymes such as amylase are secreted by the salivary glands in order to help with the digestion of foods.

In conclusion, the statement 'enzymes in your saliva start breaking down the carbohydrates in food' is correct about the digestive system and proteins.

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You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

The role of the institutional animal care and use committee (IACUC) of a research institution is to provide research animals with clean and healthy conditions in the laboratory. mediate the acquisition of animals by the institution's researchers. review all proposals for animal research to be sure the procedures to be used are appropriate and humane. review animal research proposals only to ensure that the proposed experiments are scientifically valid.

Answers

Answer:

review all proposals for animal research to be sure the procedures to be used are appropriate and humane.

Explanation:

The Institutional Animal Care and Use Committee (IACUC) is a federal committee responsible for approving and/or prohibiting the use of animal (nonhuman vertebrate) subjects for research, testing and teaching purposes, as well as the inspection of animal facilities. IACUC evaluates the institution's animal programs and procedures as described by the Office of Laboratory Animal Welfare (OLAW). This committee has the task to verify animal's well-being by minimizing pain and distress (for example, by ensuring the use of non-invasive methods when possible). Researchers/educators that use animals for research/teaching purposes must previously submit a written request defined by the IACUC's guidelines.

Compared to small cells, large cells have more trouble doing what

Answers

Answer:

As the cell grows, it faces some issues such as:

• Running out of the nutrients and requirement of growth factors.

• Running out of the space.

• Require appropriate gas exchange.

As compared to the smaller cells, larger cells have more issues in moving the required materials inside and excretory products outside. This is because the ratio of the surface is to volume is turning more and more unbalanced and takes much longer time for the cellular processes to take place.

Explanation:

write a paragraph of at least five sentences expressing your appreciation of the benefits you can gain from dancing

Answers

Answer:

people of all ages, shapes, and sizes. It has a wide range of physical and mental benefits including:

improved condition of your heart and lungs

increased muscular strength, endurance, and motor fitness

increased aerobic fitness

improved muscle tone and strength

weight management

stronger bones and reduced risk of osteoporosis

better coordination, agility, and flexibility

improved balance and spatial awareness

increased physical confidence

improved mental functioning

improved general and psychological wellbeing

greater self-confidence and self-esteem

better social skills.

Understanding the molecular basis of life helped in developing many technologies some used to further discover the cell, and others used to diagnose diseases or create organs or perform surgeries. Choose one technology and describe it briefly indicating its uses. 2. In what ways might genetically engineered organisms pose a threat to the health and safety of human populations

Answers

Answer:

1- The CRISPR-Cas system

2- Genetically modified organisms raise concerns associated with allergic reactions, horizontal gene transfer and outcrossing

Explanation:

The CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-Cas (CRISPR-associated) technology is widely used in medicine and research. The CRISPR-Cas is a versatile RNA-programable genome editing system capable of introducing genetic modifications at target DNA sequences. This technology is based on the natural bacterial immune system that cleaves bacteriophages and plasmid DNA sequences. Moreover, Genetically Modified Organisms (GMO) have historically raised three major concerns on human health: 1-the allergenicity of GMO foods, 2-the ability that GMOs might have to insert genes through horizontal transfer and 3-outcrossing between GMOs and (genetically) unmodified crops, which are further consumed as non-GM foods.

Which method of genetic recombination is illustrated in the diagram?

Answers

Answer:

The correct answer is this one "independent assortment." Independent assortment refers to the formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes.

Explanation:

I wish This would be helpfull for you

The energy of an object due to its temperature is called
a. Temperature Energy
b. Thermometer
c. Thermal Energy
d. Chemical Energy

Answers

Answer:

C. Thermal energy.

The energy of an object due to its temperature is called Thermal energy.

How can you tell the difference
between a plant cell and animal cell?

Answers

Answer:

I hope it helps you a lot!

:P

Explanation:

Answer:

Animal cell has no cell wall but plant cell has cell wall made of cellulose

During what phase of meiosis does sister chromatids align at the equator?

Answers


During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells. Then in anaphase II, the chromosomes separate at the centromeres. The spindle fibers pull the separated chromosomes toward each pole of the cell.

Please help me ASAP please

Answers

Im pretty sure he is affected

Answer:

D

Explanation:

Because the grandparents are at the top he started it basically.

Inorganic, crystalline substances found naturally within earth are known as

Answers

Answer:

Minerals.

Explanation:

Minerals can be defined as any form of naturally occurring, inorganic solid substance characterized by a crystal structure. Also, minerals are homogeneous in nature with a defined chemical composition and characterized by a crystal structure comprising of ions, atoms, or molecules in an orderly arrangement.

Generally, molecules attach on the inside of a mineral to give it shape. Therefore, the molecule of a mineral is a crystal three-dimensional regular structure (arrangement) of chemical particles that are bonded together and determines its shape.

Due to the fact that these molecules are structurally arranged or ordered and are repeated by different symmetrical and translational operations they determine the shape of minerals.

Hence, inorganic, crystalline substances found naturally within earth are known as minerals. Some examples of minerals are iron, copper, aluminum, tin, coal, quartz, feldspar, mica, etc.

Rattlesnake Species
100
Average Length (cm)
8 8 8 8 8 8 8 %
60
Mojave
Massasauga
Western
Diamondback
O
Black-tailed
1. Which type of information about rattlesnakes
does the bar graph above show? SCIL15.2
adaptation
evolution
mimicry
variation

I needdd helpppp plssss

Answers

Answer:

cool

Explanation:

this is easy I am not going to waist a lot of time but I will give you a cool video to watch in you tube

What is the probability that the son is colorblind?

Answers

Answer:

I do believe 50 percent

Explanation:

You get traits from both mom and dad

If they have children with a man who is not color blind, then each daughter has a 50% chance of being a carrier and each son has a 50% chance of being color blind.

What are the monomers of Carbohydrates?

A. Monosacharides
B. Nucleic Acids
C. Amino Acids
D. Fatty Acids

Answers

Explanation:

A. Monosacharides

....... from Greek

monos = single

sacchar = sugar

Which action is necessary for a solar eclipse to occur?
The Moon needs to be full.
Earth needs to pass in front of the Sun.
The Sun needs to pass in front of the Moon.
The Moon needs to pass between Earth and the Sun.

Answers

The Moon need to pass between Earth and the Sun is the answer

A new human species was found on a distant planet, whose genetic inheritance and process of reproduction is identical to that of humans on earth, however, their phenotypes are much different. You are tracking two phenotypes in this new species: eye shape and tail size. The single gene that controls eye shape (gene E) is unlinked from the single gene that controls tail size (gene T). Square eyes is the dominant eye shape and round eyes is the recessive eye shape. Long tail is the dominant tail size and short tail is the recessive tail size.

Required:
An individual of this new species is heterozygous for gene E and heterozygous for gene T. What is their genotype and phenotype?

Answers

Answer:

The individual has the genotype Ee (for the eyes) and Tt (for the tail) and has square eyes and a long tail.

Explanation:

If an individual is heterozygous, it means that he has a dominant allele and a recessive allele for each genotype. In this case, if the individual is heterozygous for the E gene, he has the genotype formed with the "Ee" alleles. If the same individual is heterozygous for the T gene, it has the genotype formed by the "Tt" alleles.

Individuals with heterozygosis will present phenotypes related to the dominant allele, since the recessive allele is only expressed in hom0zygosis. In this case, the individual will have the phenotype square eyes and long tail.

compare and contrast nutrition in a guava plant and Rhizopus fungus

Answers

Contrast nutrition in a guava plant and rhizopus fungus:
Guava plant is an autotrophic, but fungi is saprophytic.
Guava is a "tropical fruit" which have nutrients like lycopene, vitamin A and that is also present in "tomatoes, beta-carotene, and cryptoxanthin".
When this fruit received infected with pathogens, there can be a transferred in its nutrient value.
For example: Guava affected by Rizophus arrhizus forced the contents of sugar, protein and ascorbic acid. It raises the phenol level in the fruit.

The five factors that are common characteristics of living things include cellular composition, reproduction, response and adaptation, metabolism, and what?

A. diversity
B. systems
C. evolution
D. Phylogenetics

Answers

Answer:

option C is answer evolution

Five factors are common characteristics of organism reproduction, reaction and adaptation, metabolism, and evolution.

What are the five characteristics of living things?

Big idea: All living things share certain properties such as tissue, fertility, growth and development, energy expenditure, homeostasis, response to the environment, and adaptability.

What are the characteristics of living things?

Organisms have many characteristics of different pronunciations. They breathe, move, respond to stimuli, breed, grow and depend on the environment.

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What is the function of the phloem?

Answers

Answer:

The phloem transport food which is synthesized in leaves by the process of photosynthesis to the lower part of the tree or plant.

hope it helps

Which choice shows the correct order of the cell cycle?

A. Mitosis --> Cytokinesis --> Interphase

B. Mitosis --> Interphase --> DNA Replication​

Answers

Answer:

correct order of the cell cycle? A

Which part of the amino acid determines the uniqueness of the amino it as well as the shape of the protein

Answers

Answer:

The primary structure of a protein - its amino acid sequence - drives the folding and intermolecular bonding of the linear amino acid chain,which ultimately determines the protein 's unique three-dimensional shape.

I hope it's helpful!

Why are all of us considered scientists to some extent?
O A. Everyone has questions about the natural world.
O B. Everyone writes and tests hypotheses.
O C. Everyone takes measurements and collects data.
O D. Everyone performs scientific experiments.

Answers

Answer:

A

Explanation:

well most of these are ture (Only due to school) the one answer that would apply to people outside of a school setting it A

Nitrogen is "fixed" by plants
O True
O False

Answers

Answer:

i think it is false. because symbiotic soil microbes do that

Describe how knowing the column (group) number is a "cheat code" for determining the number and types of bonds that an element can form.

Answers

Answer and Explanation:

The columns of the periodic table are able to inform the number and type of connection that the elements can make. This is because the number of each column informs the number of electrons in the valence layer of the elements. The amount of electrons in the valence layer is what determines the amount and type of bond that the elements make. The elements in column 1, for example, have 1 electron in the valence layer and therefore will make 1 covalent bond. The elements of columns 15, as another example, have 5 electrons in the valence layer and will need to make 3 ionic or covalent bonds.

To describe how knowing the group number is a cheat code to determine the type of bonds that can be formed, we should first define periodic table

What is periodic table

Periodic Table is a series of elements in which they are arranged in increasing order of their atomic number from left to right but the table also have groups (column) from up to downwards each group have atoms with same number of electrons in their last shell due to which they all have almost similar properties such as same magnetic properties ,same number of bonds formation, metallic character .

We can say that similarity in properties of members of same group is due to same number of valance electrons . For example group 14 i.e. Carbon Family ,all elements of this group will have 4 valance electrons and will form 4 bonds by sharing of their electrons.

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Once homeostasis is reached, no changes or adjustments are needed because permanent balance has been reached

-true
-false​

Answers

Answer:

True

Explanation:

Which property of water allows it to dissolve substances like sodium Which property of water allows it to dissolve substances like sodium chloride and glucose but prevents it from dissolving lipids?

A. pH

B. polarity

C. adhesion

D. cohesion

Answers

It's polarity I think

Polarity is an intrinsic property of water associated with its behavior to dissolve substances like sodium chloride and glucose.

What is polarity?

It is a property of high importance because it defines the behavior of these related to other properties.

It represents the unequal electrical charges in the same molecule, said unequal splitting of electrons makes water a polar molecule.

Therefore, we can conclude that polarity is an intrinsic property of water associated with its behavior to dissolve substances like sodium chloride and glucose.

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Describe environmental and health problems caused by polluted air.

Answers

Long-term exposure to polluted air can have permanent health effects such as: Accelerated aging of the lungs. Loss of lung capacity and decreased lung function. Development of diseases such as asthma, bronchitis, emphysema, and possibly cancer.

Answer:

long terms lung disease and heart problems

Explanation:

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