Question

3. A cross between an individual with

unknown genotype for a trait with

recessive plant for that trait is ..............

a. back cross b. reciprocal cross

c. monohybrid cross d. test cross

4. When phenotypic and genotypic ratios

are the same, then it is an example of

............

a. incomplete dominance

b. complete dominance

c. Multiple alleles

d. cytoplasmic inheritance

5. If the centromere is situated near the end

of the chromosome, the chromosome is

called ................

a. Metacentric b. Acrocentric

c. Sub-Metacentric d. Telocentric

6. Chromosomal theory of inheritance was

proposed by ................

a. Sutton and Boveri

b. Watson and Crick

c. Miller and Urey

d. Oparin and Halden

7. If the genes are located in a chromosome

as p-q-r-s-t, which of the following gene

pairs will have least probability of being

inherited together?

a. p and q b. r and s

c. s and t d. p and s

8. Find the mis match pair :-

a. Down’s syndrome = 44 + XY

b. Turner’s syndrome = 44 + XO

c. Klinefelter syndrome = 44 + XXY

d. Super female = 44 + XXX

9. A colourblind man marries a woman,

who is homozygous for normal colour

vision ,the probability of their son being

colourblind is –

a. 0% b. 25%

c. 50% d. 100%​

Answer 1

$\huge{\underline{\underline{\boxed{\boxed{\mathfrak{\blue{Answers}}}}}}}$

3. A cross between an individual with unknown genotype for a trait with recessive plant for that trait is test cross.

4. When phenotypic and genotypic ratios are the same, then it is an example of complete dominance.

5. If the centromere is situated near the end of the chromosome, the chromosome is called sub-Metacentric.

6. Chromosomal theory of inheritance was proposed by Watson and Crick.

7. If the genes are located in a chromosome as p-q-r-s-t, which of the following gene pairs will have least probability of being inherited together?

p and s.

8.The mis pair is------ Super female=44+XXX.

9. A colourblind man marries a woman, who is homozygous for normal colour vision ,the probability of their son being colourblind is 50%

$\huge\underline\mathfrak\pink{Thankuhh}$

Answer 2

Mehek O.o