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Inga [223]
3 years ago
10

Explain what factors can lead to genetic variation within a population.

Biology
1 answer:
Andru [333]3 years ago
5 0

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Hope this helped :)

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3 years ago
Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley.
Dmitry_Shevchenko [17]

Answer:

All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.

Explanation:

<u>Available data</u>:

  • Smurfette has light blue skin
  • Her family is a "true bred" or "purebred" line.
  • She married a boy who has light yellow skin
  • blue skin is the dominant trait expressed by the B allele
  • yellow skin is a recessive trait, expressed by the b allele

Cross: Smurfette  x  Husband

Parentals)            BB     x     bb

Gametes)          B   B       b     b

Phenotypes) blue skin     yellow skin

Punnett square)

                       B        B

             b      Bb      Bb

             b      Bb      Bb

F1) 100% of the progeny will be heterozygous for the skin color, Bb

     100% of the progeny will be blue-skinned.

Note: Although the progeny is blue-skinned, they are not true-bred anymore.

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3 years ago
When --- equals the force of gravity on a falling object, the object reaches terminal velocity.
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Hey Bonny959!

Terminal Velocity is reached when the drag force and buoyancy equal the force of gravity on a falling object!

Hope this helps!
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As hominids evolved, their eyes increased in size and became more forward facing. Which of the following can be inferred from th
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3 years ago
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