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kodGreya [7K]
3 years ago
5

Tall plants are dominant over short plants. One parent is homozygous dominant and the other is heterozygous for plant height.

Biology
2 answers:
Greeley [361]3 years ago
7 0

Answer:

a. all tall

Explanation:

If genotypically one of the parents is homozygous dominant and another one is heterozygous for plant height then phenotypically all their progeny will be tall.

Let us suppose, 'T' represents dominant allele and 't' represents recessive allele. Then the genotype of one parent who is homozygous dominant will be TT and genotype of another parent  who is heterozygous will be Tt.

The cross is depicted in the attachment.

Here it may also be noted that genotypically two of the progeny will be homozygous dominant while two of the progeny will be heterozygous but phenotypically all the progeny will be 'tall'.

Sergio [31]3 years ago
6 0

Answer:

a. all tall

Explanation:

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Answer:

Angiosperms have seeds with an 3n endosperm due to double fertilization.

Explanation:

  • Double fertilization is found only in flowering plants.
  • In angiosperms, the female gametophyte does not grow after reaching eight nucleate stage.
  • After fertilization and triple fusion, the zygote and primary endosperm are created and further growth of embryo sac continues.
  • Triple fusion is the fusion of two haploid polar nuclei of female gametophyte and one male nuclei. This results in a  3n nucleus.
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Answer:

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<h3>Who is Charles Darwin?</h3>

Charles Darwin was a British naturalist/scientist and founder of the theory of evolution by natural selection.

He is best known for his award-winning work on the origin of species, which he published in 1859. Darwin developed his theory from findings he made following a five-year expedition on board HMS Beagle.

According to this question, Darwin reviewed his observations after he returned home from his voyage studying the selective breeding of pigeons.

The question that Charles Darwin would be prompted to ask on his voyage is as follows: can selection in nature also lead to a new species over time?.

Learn more about Charles Darwin at: brainly.com/question/16489282

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