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2 years ago

How has the development of a pine and then a hardwood forest affected populations of shrubs?

Biology

1 answer:

kirill115 [55]2 years ago

3 0

Answer:

Yes, shrubs are affected.

Explanation:

The development of a pine and then a hardwood forest affected populations of shrubs because pine and hardwood trees are higher in length than shrubs so the shrubs did not gain sunlight and also all the nutrients present in the soil is extracted by the pine and hardwood trees. The shrubs present below the pine and hardwood trees slowly removes from that environment due to unavailability of sunlight and nutrients.

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Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers, and the other has white, terminal flowers

Debora [2.8K]

Answer:

Explanation:

The probability of producing plants with white axial flowers would be 1/16.

From the illustration, All F1 individuals had red, axial flowers. It thus means that red and axial genes are dominant over white and terminal genes in the pea plant.

Let us assume that the allele for flower color is A (red) and a (white); and the allele for flower location is B (axial) and b (terminal).

Pure-breeding red, axial flower = AABB

Pure breeding white, terminal flower = aabb

AABB x aabb

F1 genotype = AaBb - all red and axial

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AaBb x AaBb

Progeny

9 A_B_ red/axial

3 A_bb red/terminal

3 aaB_ white/axial

1 aabb - white/terminal

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