in pea plants, height is determined by an allele for tallness (t) that is dominant over an allele for…

in pea plants, height is determined by an allele for tallness (t) that is dominant over an allele for shortness (t). what is the probability that a gamete, selected at random, would carry the short allele (t) in a cross of heterozygous tall pea plants?\na. 1/8\nb. 1/4\nc. 1/2\nd. 3/4

in pea plants, height is determined by an allele for tallness (t) that is dominant over an allele for shortness (t). what is the probability that a gamete, selected at random, would carry the short allele (t) in a cross of heterozygous tall pea plants?\na. 1/8\nb. 1/4\nc. 1/2\nd. 3/4

Answer

Explanation:

Step1: Identify parent genotypes

Heterozygous tall pea plants have genotype $Tt$.

Step2: Determine gamete types

Each $Tt$ plant produces 2 gamete types: $T$ and $t$, each with equal probability.

Step3: Calculate short allele probability

Probability of a gamete carrying $t$ is $\frac{1}{2}$, as the two gamete types are equally likely.

Answer:

C. 1/2