#Question id: 4732
#XL - R Botany
What is F2 phenotype ratio observed when a homozygous recessive mutation in either or both of two different genes results in the same mutant phenotype?
#Question id: 4733
#XL - R Botany
If a homozygous plant with red peppers is crossed with a homozygous plant with green peppers, all the F1 plants have red peppers. When the F1 are crossed with one another, the F2 are in a ratio of 9 red : 3 brown : 3 yellow : 1 green due to
#Question id: 4734
#XL - R Botany
If a homozygous plant with red peppers is crossed with a homozygous plant with green peppers, all the F1 plants have red peppers When the F1 are crossed with one another then produced following progeny Which of following interaction involved in gene to gene of peppers plant?
#Question id: 4742
#XL - R Botany
In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?
#Question id: 4743
#XL - R Botany
Ectrodactyly is an autosomal dominant trait that causes missing middle fingers (lobster claw malformation). A grandfather and grandson both have ectrodactyly, but the intervening father has normal hands by x-ray. Which of the following terms applies to this family?
#Question id: 4744
#XL - R Botany
Assume that long ear lobes in humans are an autosomal dominant trait that exhibits 50% penetrance. A person who is heterozygous for long ear lobes mates with a person who is homozygous for normal ear lobes. What is the probability that their first child will have long ear lobes.