Embibe Experts Solutions for Chapter: Principles of Inheritance and Variation, Exercise 1: AIPMT - 25th July 2015

$\mathrm{XO}$ type of sex determination can be found in:

Given below are two statements:
Statement I: Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance.
Statement II: Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height.
In light of the above statements, choose the correct answer from the options given below:

Which of the following occurs due to the presence of autosome linked dominant trait?

Given below are two statements one is labelled as: Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Mendel's law of independent assortments does not hold good for the genes that are located closely on the same chromosome.

Reason (R): Closely located genes assort independently.

In light of the above statements, choose the correct answer from the options given below:

The recombination frequency between the genes a and c is $5\%$, b and c is $15\%$, b and d is $9\%$, a and b is $20\%$, c and d is $24\%$ and a and d is $29\%$. What will be the sequence of these genes on a linear chromosome?

If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?

The production of gametes by the parents, formation of zygotes, the ${\mathrm{F}}_1$ and ${\mathrm{F}}_2$  plants, can be understood from a diagram called:

In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased?