Which is not a feature of the chromosomal theory of inheritance?

(a)

Somatic cells of organisms are derived from zygote by repeated meiosis.

(b)

Chromosomes retain their structural uniqueness throughout the life of an organism.

(c)

Mendelian factors are located in chromosomes

(d)

Sutton and Boveri independently proposed the theory.

Which of the following statement(s) is/are wrong with respect to Recombination process?
(i) Mitotic crossing over occurs rarely in somatic cells.
(ii) Syndesis refers to pairing of non-homologous chromosome.
(iii) Procentric synapsis starts from telomeres.
(iv) A Bivalent has four chromatids.

(a)

i and iv

(b)

ii and i

(c)

ii and iii

(d)

All the above

In a population of 250 progenies produced, only 120 resemble the parental forms. Calculate the recombinant frequency.

(a)

66%

(b)

52%

(c)

59%

(d)

49%

Statement 1: Euploidy involves entire sets of chromosomes
Statement 2: Aneuploidy involves individual chromosomes within a diploid net.

(a)

Statement 1 is correct and Statement 2 is incorrect

(b)

Statement 1 is incorrect and Statement 2 is correct

(c)

Both the statements are correct

(d)

Both the statements are incorrect

Statement 1: Pairing of homologous chromosome is called as syndesis.
Statement 2: Proterminal synapsis occurs from telomeres.

(a)

Statement 1 is correct and Statement 2 is incorrect

(b)

Statement 1 is incorrect and Statement 2 is correct

(c)

Both the statements are correct

(d)

Both the statements are incorrect