NEET UG 2022 — Principles of Inheritance and Variation

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:

Given below are two statements : Statement I : Sickle cell anaemia and Haemophilia are autosomal dominant traits . Statement II : Sickle cell anaemia and Haemophilia are disorders of the blood. In the light of the above statements, choose the correct answer from the options given below :

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

If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :

Select the incorrect match regarding the symbols used in Pedigree analysis:

The chromosomal theory of inheritance was proposed by :

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?

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

What is the expected percentage of $\mathrm{F}_2$ progeny with yellow and inflated pod in dihybrid cross experiment involving pea plants with green coloured, inflated pod and yellow coloured constricted pod?

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