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dangina [55]
3 years ago
7

What is the difference between a pure tall plant and a hybrid tall plant?

Biology
2 answers:
zheka24 [161]3 years ago
6 0
A pea plant<span> with one recessive gene for shortness and one dominant gene for tallness is a </span>hybrid<span> for that trait. A </span>hybrid<span> is called heterozygous, as it has two </span>different<span> alleles. The offspring from a </span>pure tall<span> pea </span>plant<span>, cross-pollinated with a </span>pure<span> short pea </span>plant<span>, will result in a heterozygous </span>plant<span> for tallness.</span>
Tema [17]3 years ago
5 0

Answer:

The pure tall plant has equal alleles (AA or aa) while the hybrid tall plant has one dominant and recessive allele (Aa).

Explanation:

When we say that an organism is pure, we mean that it is homozygous. In this case we are saying that, for a given trait, its alleles are equal. This means that the allele is occurring in double dose in that organism and, consequently, the gametes generated by it will be equal. A pure tall plant has alleles equal to "AA" or "aa".

When we refer to hybrid organisms, we are referring to heterozygous organisms. In this case we are saying that, for a certain characteristic, the alleles are different. For this reason, in gametogenesis, it is possible to observe the presence of two distinct gametes. A hybrid tall plant has different "Aa" alleles.

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