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Biology 10 Chapter 15 - Inheritance - 8
1.
What was declared as recessive in Mendel’s first experiment using seed shape?
a) Round seeds
b) Green coloured seeds
c) Wrinkled seeds
d) Yellow coloured seeds
2.
After F1 x F1, how many total seeds Mendel got in first experiment?
a) 5474
b) 1850
c) 7324
d) 7234
3.
After F1 x F1, how many round seeds Mendel got in first experiment?
a) 7234
b) 7324
c) 1850
d) 5474
4.
After F1 x F1, how many wrinkled seeds Mendel got in first experiment?
a) 7234
b) 5474
c) 1850
d) 7324
5.
What was the ratio of round with wrinkled seeds in first experiment?
a) 2:2
b) 2:1
c) 3:1
d) 3:2
6.
How is parental generation denoted?
a) F1
b) F2
c) None of these
d) P1
7.
When “true-breeding” tall plants are crossed with “true-breeding” short plants, what offsprings are produced?
a) All tall
b) Some short and many tall
c) All short
d) Some tall and many short
8.
What was declared as dominant in Mendel’s first experiment using phenotype “plant height”?
a) Tallness
b) Shortness
c) Dwarfness
d) Yellowing
9.
Mendel concluded that the traits under study were controlled by discrete.....................?
a) (a) Chromosomes
b) (b) Factors
c) (d) Both b and c
d) (c) Genes
10.
What was the ratio of tall to short plants, when Mendel self-fertilized members of F1 generation?
a) 2:1
b) 3:2
c) 3:1
d) 2:2
11.
Who concluded that the traits under study were controlled by discrete factors or genes?
a) Mendel
b) Einstein
c) Punnet
d) Newton
12.
What is meant by discrete?
a) Distinct
b) Separable
c) Joinable
d) Attachable
13.
During gamete formation, how many genes each gamete receives from the pair?
a) Four
b) One
c) Three
d) Two
14.
When the gametes of male and female parents unite, the resulting offspring again gets the genes in pairs. What were these conclusions called?
a) Law of independent assortment
b) Law of segregation
c) Law of gravity
d) Law of co-dominance
15.
How many contrasting traits Mendel studied in his second experiment?
a) Four
b) One
c) Two
d) Three
16.
What are the crosses called in which two contrasting traits are studied at a time?
a) Trihybrid cross
b) Dihybrid cross
c) Tetra hybrid cross
d) Monohybrid cross
17.
On how many seed traits, Mendel performed his second experiment?
a) Four
b) Two
c) Three
d) One
18.
What were the seed traits on which Mendel performed his second experiment?
a) (c) Colour
b) (d) Both b and c
c) (a) Height
d) (b) Shape
19.
The trait of round seeds was dominant over.................?
a) Green seeds
b) Yellow seeds
c) Round seeds
d) Wrinkled seeds
20.
By which allele the trait of round seeds is represented?
a) Allele R
b) Allele w
c) Allele r
d) Allele W
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