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Mademuasel [1]
3 years ago
14

Over the last several decades, the scientific community has gathered a large amount of information regarding genetics and geneti

c variation. What are two main sources that lead to increased genetic variation?(((((Both answers must be selected.))))) A) Selective breeding, B) Gamete mutations, C) Recombination, D) Genetic drift
Biology
2 answers:
emmasim [6.3K]3 years ago
8 0
I think the correct answers from the choices listed above are options B and C. The two main sources  that lead to increased genetic variation would be Gamete mutations and recombination. <span>Gametes mutations leads to change in DNA information, recombination allows mixture of genotypes.</span>
BartSMP [9]3 years ago
4 0

Answer:

B) Gamete mutations, C) Recombination

Explanation:

Any random changes in the DNA of gametes are called as gamete mutations. These mutations are transmitted to the next generation via gametes and thereby the genetic variations are increased.

Recombination is the production of new gene combinations. Crossing over during meiosis I of gamete formation add new gene combinations to gametes. Random fertilization of these gametes add even more genetic variations to the progeny.  

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olganol [36]

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Explanation:

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vazorg [7]

Answer:

- They allow for more collisions of molecules (enzymes + substrates)

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Explanation:

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3 years ago
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Fynjy0 [20]
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7 0
3 years ago
seeds that are planted upside down are still able to grow into mature plants which explanation best explains this phenomenon?​
pav-90 [236]

Answer:

This question is incomplete but the completed question is below

eeds that are planted upside down are still able to grow into mature plants. Which explanation best explains this phenomenon?

(a)The roots change into branches, and the branches turn into roots.

(b)The roots grow toward the force of gravity, and the shoots grow away.

(c)The plant will become a smaller version of a mature plant.

(d)Roots always grow toward the dark, and shoots grow toward the light.

Two options appear to be correct here: options B and D

Explanation:

Regardless of the direction the seed is planted, the seed has the ability to re-position itself via the help of growth hormones that respond to gravity and redirect the seed into the proper orientation. However, after re-orientation of the seed, the root grows toward the direction of gravity (a process known as gravitropism) while the shoot grows toward the direction of sunlight (a process known as phototropism). Even though two options appear to be correct here, the most correct option based on he question is b

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2 years ago
Which hormone is not matched correctly with its principal action?(A) gastrin – increases stomach movement (B) erythropoietin (EP
aev [14]

Answer:

The correct answer is: (B) erythropoietin (EPO) – increases white blood cell production.

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7 0
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