1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alina [70]
3 years ago
7

What happens during crossing over

Biology
2 answers:
Marina86 [1]3 years ago
7 0

Answer:

a is your an

Explanation:

CaHeK987 [17]3 years ago
5 0

Answer:B) homologous chromosomes trade pieces of dna

Explanation:

Crossing over occurs between two homologous chromosome of sisters chromatid. Crossing over leads to exchange of genetic material between the two sister chromatids leading to recombination.

You might be interested in
Why can benedict's solution be used to distinguish between glucose and sucrose?
sattari [20]
C........................................................................................................
4 0
3 years ago
Tina, an environmental scientist, is protesting the use of polychlorinated biphenyl (PCB).
Lyrx [107]
<span>The EPA under the Toxic Substances Control Act also referred to as the TSCA are responsible for setting rules and regulations regarding polychlorinated biphenyl, PCB. Tina should reference the TSCA to help support her protest against the very toxic chemicals and compounds in PCB.</span>
6 0
3 years ago
What is the primary difference between natural selection and artificial selection?
lawyer [7]
Natural selection<span> and selective breeding can both cause changes in animals and plants. The </span>difference between<span> the two is that </span>natural selection<span> happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called </span>artificial selection<span>.</span>
5 0
3 years ago
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant o
Kipish [7]

Answer:

See

Explanation:

Given:

Brown allele (B) is dominant over the white allele (b).

It will be assumed that the alleles are not related to the X and Y chromosomes.

See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)

For both parents hetero-zygous,

P1:

Genotype: Bb (100%)

Phenotype: brown (100%)

F1:

Genotypes : BB, Bb, bB and bb in equal proportions, i.e.

BB (25%), Bb (50%), bb (25%)

Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)

8 0
3 years ago
When encountering another vessel in darkness or reduced visibility, what is indicated by the presence of only a visible white li
katrin2010 [14]
The vessels use three main colors (white, green and red) where each color alone, combination of two colors as well as the three colors together each has a certain meaning. This meaning is sort of an international code that is agreed all over the globe.

So, based on this code, the presence of only visible white light means that your vessel might be overtaking another vessel. In this case, you should give way to either sides. The other vessel should standby until an action is taken from your end.
3 0
3 years ago
Read 2 more answers
Other questions:
  • After digestion is completed what goes into the blood streem
    14·1 answer
  • Why is cell division important for a new baby
    14·1 answer
  • Today’s beverage pasteurization processes are the result of this scientist’s work.
    14·1 answer
  • What plant organelles can the plant cell not survive without?
    7·1 answer
  • Drag each item to the correct location to indicate whether it addresses the Clean Water Act or the Safe Drinking Water Act. Item
    6·2 answers
  • A student use the following flowchart to show the movement of nutrients factory air plants animals which nutrient is the student
    9·2 answers
  • _______ is a protein produced by a regulatory gene
    12·1 answer
  • How does energy change as it moves through the ecosystem?
    11·2 answers
  • How can interactions between alleles genes and the environment affect an organism's traits?
    13·1 answer
  • Why are spherical protozoans are generally much smaller than irregularly-shaped protozoans ?<br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!