INHERITANCE AND VARIATION (I)
Click on any option to know the CORRECT ANSWERS
Which of the following conditions represents a case of co-dominance genes?
A gene expresses itself, suppressing the phenotypic effect of its alleles.
Genes that are similar in phenotypic effect when present separately, but when together interact to produce a different trait.
Alleles, both of which interact to produce a trait, which may or may not resemble either of the parental types.
Alleles, each of which produces an independent effect in a heterozygous condition.
A human female with turner's syndrome
has 45 chromosomes with XO
has one additional X-chromosome
exhibits male characters
is able to produce children with normal husband
If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is
Which of the following terms best describes when the phenotype of the heterozygote differs from the phenotypes of both homozygotes?
If dihybrid mulatto male (AaBb) is crossed with white female, then the ratio of mulatto and white offspring will be-
There are 5 questions to complete.