Online Test of Chapter 9 Heredity and Evolution Class 10th Science
Questions :-
1.What is Genetics?
a. study of life
b. study of life forms
c. study of fertility
d. study of heredity & variation
2. Which is the causes of variation?
a.Vegetative propagation
b.Contraception
c.Different combination of genetic material, gene mutation
d.Fertility
3. Which of the following is pure or homozygous condition?
a. Abcc
b. Tt
c. gG
d. tt
4. Which of the following is totally impossible outcome of Mendel’s Experiment?
a. 3 tall 1 short plant
b. 24 tall and 8 short plants
c. 8 tall and 0 short plants
d. 4 tall plants and 1 medium height plant.
5.Which of the following is not a direct conclusion that can be drawn from Mendel’s Law of segregation?
a. Only one parental trait is expressed
b. Two copies of each trait is inherited in sexually reproducing organism
c. For recessive trait to be expressed, both copies should be identical
d. Natural selection can alter frequency of an inherited trait.
6. Which one is a possible progeny in F2 generation of pure bred tall plant with round seed and short plant with wrinkled seeds?
a. Tall plant with round seeds
b. Tall plant with wrinkled seeds
c. Short plant with round seed
d. All of the above
7.Which section of DNA provides information for one protein
a. Nucleus
b. Chromosomes
c. Trait
d. Gene
8.Parental (P) generation: SSYY cross with ssyy gives in F1 Generation is?
a. Round,yellow seeds
b. Round, green seeds
c. wrinkled, yellow seeds
d. wrinkled, green seeds
9. What is the probability that the male progeny will be a boy?
a. 50%
b. 56%
c. 47.43%
d. It varies
10.Who have a perfect pair of sex chromosomes?
a. Girls only
b. Boys only
c. Both girls and boys
d. It depends on many other factors
Chapter - 9 Heredity and Evolution Quiz - 1 | Class - 10th
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Question 1 of 10
1. Question
What is Genetics?
Correct
Genetics is the branch of biology which deals with the study of heredity & variation.
Incorrect
Genetics is the branch of biology which deals with the study of heredity & variation.
-
Question 2 of 10
2. Question
Which is the causes of variation?
Correct
Variation is the differences in characters/traits between the parent and their off-spring and result of gene mutation also.
Incorrect
Variation is the differences in characters/traits between the parent and their off-spring and result of gene mutation also.
-
Question 3 of 10
3. Question
Which of the following is pure or homozygous condition?
Correct
Pure or homozygous condition is the condition in which both the trait or alleles are dominant or recessive like tt and TT.
Incorrect
Pure or homozygous condition is the condition in which both the trait or alleles are dominant or recessive like tt and TT.
-
Question 4 of 10
4. Question
Which of the following is totally impossible outcome of Mendel’s Experiment?
Correct
Tall plants and 1 medium height plant, because: one factor in a pair of traits dominates the other in inheritance unless both factors in the pair are recessive.
Incorrect
Tall plants and 1 medium height plant, because: one factor in a pair of traits dominates the other in inheritance unless both factors in the pair are recessive.
-
Question 5 of 10
5. Question
Which of the following is not a direct conclusion that can be drawn from Mendel’s Law of segregation?
Correct
During production of gametes, two copies of each hereditary factor segregate so that offspring acquire one factor from each parent .
Incorrect
During production of gametes, two copies of each hereditary factor segregate so that offspring acquire one factor from each parent .
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Question 6 of 10
6. Question
Which one is a possible progeny in F2 generation of pure bred tall plant with round seed and short plant with wrinkled seeds?
Correct
Because, alleles of different characters separate independent from each other during gamete formation
Incorrect
Because, alleles of different characters separate independent from each other during gamete formation
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Question 7 of 10
7. Question
Which section of DNA provides information for one protein
Correct
Section of DNA, provides information for one protein is called gene.
Incorrect
Section of DNA, provides information for one protein is called gene.
-
Question 8 of 10
8. Question
Parental (P) generation: SSYY cross with ssyy gives in F1 Generation is ?
Correct
Incorrect
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Question 9 of 10
9. Question
What is the probability that the male progeny will be a boy?
Correct
Men have a mismatched pair, XY while female has perfact matched pair, XX. From sex determination experiment we found 2/4 were boy, 2/4 were girl.
Incorrect
Men have a mismatched pair, XY while female has perfact matched pair, XX. From sex determination experiment we found 2/4 were boy, 2/4 were girl.
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Question 10 of 10
10. Question
Who have a perfect pair of sex chromosomes?
Correct
Men have a mismatched pair, XY while female has perfact matched pair, XX.
Incorrect
Men have a mismatched pair, XY while female has perfact matched pair, XX.