Mendelian inheritance

Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?

In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?

Which one of the following can be explained on the basis of Mendel's Law of Dominance?

A. Out of one pair of factors one is dominant and the other is recessive.

B. Alleles do not show any expression and both the characters appear as such in \(F_2\) generation.

C. Factors occur in pairs in normal diploid plants.

D. The discrete unit controlling a particular character is called factor.

E. The expression of only one of the parental characters is found in a monohybrid cross.

Choose the correct answer from the options given below:

Match List I with List II

List I: A. Two or more alternative forms of a gene; B. Cross of \(F_1\) progeny with homozygous recessive parent; C. Cross of \(F_1\) progeny with any of the parents; D. Number of chromosome sets in plant

List II: I. Back cross; II. Ploidy; III. Allele; IV. Test cross

Choose the correct answer from the options given below:

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

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 assortment does not hold good for the genes that are located closely on the same chromosome.

Reason (R) :

Closely located genes assort independently.

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

The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called :

How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits ?

Select the *correct* match :

Among the following characters, which one was not considered by Mendel in his experiments on pea ?

Which one from those given below is the period for Mendel's hybridization experiments ?

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F\(_1\) plants were selfed the resulting genotypes were in the ratio of :

Match the terms in Column I with their description in Column II and choose the correct option :

Column I: (a) Dominance; (b) Codominance; (c) Pleiotropy; (d) Polygenic inheritance

Column II: (i) Many genes govern a single character; (ii) In a heterozygous organism only one allele expresses itself; (iii) In a heterozygous organism both alleles express themselves fully; (iv) A single gene influences many characters

Code :

(a) (b) (c) (d)

A true breeding plant is