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PIT_PIT [208]
2 years ago
14

What factors determine if a species is fit to survive?

Biology
1 answer:
Tresset [83]2 years ago
4 0

Answer: variation, reproduction, and heritability.

Explanation:  Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.  

All species must reproduce to survive. Organisms cannot live forever, so they must reproduce to allow their species to continue to live on. Reproduction is nature's way of allowing a species to survive.

Higher heritability means the trait evolves faster; fewer generations are required for the trait to increase to the same degree as a trait with lower heritability. For this reason, genetic correlation and heritability show how a trait might change from one generation to the next and into the future.

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All the iron molecules that are in your body were originally created by____
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Explanation did this help

3 0
2 years ago
Examine the genotype for an individual who is AaBbCcDc. Predict the outcomes of meiosis and the potential gamete combinations th
Katarina [22]

Answer: 16 different gametes

  1. ABCD
  2. ABCd
  3. ABcD
  4. ABcd
  5. AbCD
  6. AbCd
  7. AbcD
  8. Abcd
  9. aBCD
  10. aBCd
  11. aBcD
  12. aBcd
  13. abCD
  14. abCd
  15. abcD
  16. abcd

Explanation:

Gamete formation involves the random and independent segregation of alleles. During anaphase 1 (meiosis), occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair.  

The number of gametes with different combinations is 2ⁿ, where  

n = number of homologous pairs.  

In the exposed example there are 4 pairs of chromosomes, so

the number of possible combinations of chromosomes = 2ⁿ = 2⁴ = 16

Individual: AaBbCcDdEe

You can make use of the fork line method to easily figure out the possible gametes.

A.......B.........C........D → ABCD

                     ........d → ABCd

          ...........c.........D → ABcD

                       ........d → ABcd

           b.........C........D → AbCD

                     ........d → AbCd

          ...........c.........D → AbcD

                       ........d → Abcd

a.......B.........C........D → aBCD

                     ........d → aBCd

          ...........c.........D → aBcD

                       ........d → aBcd

           b.........C........D → abCD

                     ........d → abCd

          ...........c.........D → abcD

                       ........d → abcd

7 0
2 years ago
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