Genetics Questions

Select the incorrect statement.

What map unit (Centimorgan) is adopted in the construction of genetic maps?

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statement from the following:

A gene locus has two alleles $A,a$. If the frequency of dominant allele $A$ is $0.4$, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by:

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile?

Match the items of Column-I with Column-II:Column-I: (a) XX-XO method, (b) XX-XY method, (c) Karyotype-45, (d) ZW-ZZ methodColumn-II: (i) Turner's syndrome, (ii) Female heterogametic, (iii) Grasshopper, (iv) Female homogametic (human)

From the following, identify the correct combination of salient features of the Genetic Code:

In a marriage between a male with blood group A and a female with blood group B, the progeny had either blood group AB or B. What could be the possible genotype of the parents?

The production of gametes by the parents, the formation of zygotes, and the $F_1$ and $F_2$ plants can be understood using:

In which genetic condition, each cell in the affected person has three sex chromosomes $\text{XXY}$?