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The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of :-
- a)two tall and two dwarf
- b)all homozygous tall
- c)all homozygous dwarf
- d)one homozygous tall, one homozygous dwarf and two heterozygous tall
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The crossing of a homozygous tall plant with a dwarf would yield plant...
The crossing of homozygous tall plant with a dwarf would yield plants in the ratio of 3:1 in F2 generation, i.e. 3 tall and one dwarf. This is phenotypic ratio. Genotypic ratio is 1:2:1, i.e., one homozygous tall, one homozygous dwarf and two heterozygous tall.
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The crossing of a homozygous tall plant with a dwarf would yield plant...
The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of all homozygous tall plants.
Explanation:
In genetics, the height of a plant is determined by a single gene with two alleles - T (tall) and t (dwarf). A homozygous tall plant has two copies of the tall allele (TT), while a dwarf plant has two copies of the dwarf allele (tt).
When a homozygous tall plant (TT) is crossed with a dwarf plant (tt), the offspring will all be heterozygous tall (Tt). This is because the tall allele (T) is dominant over the dwarf allele (t), so even if the plant carries one copy of the tall allele, it will exhibit the tall phenotype.
Therefore, the ratio of the offspring from this cross will be all homozygous tall plants (Tt). This is because each offspring will receive one copy of the tall allele from the homozygous tall parent and one copy of the dwarf allele from the dwarf parent, resulting in a genotype of Tt for all the offspring.
Homozygous plants have two identical alleles for a particular trait. In this case, homozygous tall plants would have two copies of the tall allele (TT). However, since we are crossing a homozygous tall plant (TT) with a dwarf plant (tt), all the offspring will be heterozygous (Tt) for the height trait.
Therefore, the correct answer is option D - all homozygous tall plants.
Explanation:
In genetics, the height of a plant is determined by a single gene with two alleles - T (tall) and t (dwarf). A homozygous tall plant has two copies of the tall allele (TT), while a dwarf plant has two copies of the dwarf allele (tt).
When a homozygous tall plant (TT) is crossed with a dwarf plant (tt), the offspring will all be heterozygous tall (Tt). This is because the tall allele (T) is dominant over the dwarf allele (t), so even if the plant carries one copy of the tall allele, it will exhibit the tall phenotype.
Therefore, the ratio of the offspring from this cross will be all homozygous tall plants (Tt). This is because each offspring will receive one copy of the tall allele from the homozygous tall parent and one copy of the dwarf allele from the dwarf parent, resulting in a genotype of Tt for all the offspring.
Homozygous plants have two identical alleles for a particular trait. In this case, homozygous tall plants would have two copies of the tall allele (TT). However, since we are crossing a homozygous tall plant (TT) with a dwarf plant (tt), all the offspring will be heterozygous (Tt) for the height trait.
Therefore, the correct answer is option D - all homozygous tall plants.
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The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of :-a)two tall and two dwarfb)all homozygous tallc)all homozygous dwarfd)one homozygous tall, one homozygous dwarf and two heterozygous tallCorrect answer is option 'D'. Can you explain this answer?
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