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
BARSIC [14]
2 years ago
6

Genetic recombination plays a role in both maintenance and diversity within an organism. Explain how this balance is achieved an

d the underlying mechanism of recombination that are involved.
Biology
1 answer:
weeeeeb [17]2 years ago
7 0

Answer:

Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

Explanation:

Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one. The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants. After crossing over, homologous chromosomes get separated again.  

On the equatorial plane, homologous paired together, randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating.  Chromosomes of the homologous pair arrange to face any of the poles to migrate forward to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. The order in the equatorial plane is what introduces variation into the gametes, being almost impossible for two gametes to have the same genetic charge.  

Independent assortment occurs when the alleles from two or more different genes distribute in gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. An organism gets only one of the members of the chromatids pair of each parent.  

You might be interested in
Insulating materials are rated by their _____.
Marta_Voda [28]
That would be the R-value
5 0
3 years ago
What features of integrated pest management make it a good approach to preserving ecosystems?
alekssr [168]

Answer:

Allowing a small but controlled portion of a pest population to remain does less damage to ecosystems, soils, water, and air. Another feature of IPM would be making a habitat more complex, such as mazes, so it can slow the spread of parasites. No-till or low-till agriculture is another feature of IPM because this helps natural enemies of some pests to build up in the soil, whereas plowing destroys the habitats of these enemies.

Explanation:

Edgen 2020 plus I got a 100 when I typed this out.

7 0
3 years ago
What is the difference between dicot roots and monocot roots
kvasek [131]

The monocot is the plant that has only one cotyledon in the embryo, whereas dicot is the plant that has two cotyledons in the embryo. ... The other big difference between the monocot roots and dicot roots is the presence of some xylem and phloem. In monocot roots, the xylem and phloem are numerous in numbers.

3 0
3 years ago
Answer the following questions:
alex41 [277]
 The United States, Great Britain, and Japan a<span>t the end of World War I,</span> all began  to make the alot of  programs of capital ship construction. This  huge building began to create  a naval arms race..The Kellogg-Briand pact was a bilateral treaty to state and point out the<span> war  that was caused by  the expansionist aggression  and anger
so it was the purpose of the pact
hope it helps</span>
4 0
3 years ago
Why was the evolution of amphibians notable? What did they pioneer?
kobusy [5.1K]
They are the first species that could live on dry ground.
3 0
3 years ago
Other questions:
  • Which of the following is not an example of a caught in or caught between hazard?
    8·2 answers
  • What is the power house of the cell?
    15·2 answers
  • Imagine that individuals with a certain allele (B) have much greater reproductive success than those without the allele. However
    13·1 answer
  • 34. If only one type of tree is planted in an abandoned<br>field, the ecosystem will​
    12·1 answer
  • What are the first three steps of scientific inquiry are related.
    9·1 answer
  • Why are there usually rain storms when a cold front and a warm front<br> meet?
    14·1 answer
  • What is the mass of 60 ml of water in this? ​
    15·2 answers
  • If the DNA molecule is only composed of four possible nitrogen bases, how can thousands of different proteins be formed from suc
    10·1 answer
  • A point where the plate boundaries meet​
    5·1 answer
  • What is the function of the structure labeled C in the diagram to the right? it is where water, dissolved substances, and urea a
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!