Punjab 12th Class Biology Chapter 22 Variation and Genetics MCQs Test Online

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Question 1 of 10

Biology

1. How many genes control Rh blood group system?

1.Four

2.One

3.Two

4.Three

Question 1 of 10

Question 2 of 10

2. A pea plant with yellow seed was crossed to a plant having green seeds. What will happen in F1; if plants are true breeding

1. Both will be present in ratio of 1:2:1

2.All seeds will be yellow

3.Half of seeds will be yellow

4.All the seeds will be green

Question 2 of 10

Question 3 of 10

3. Which of the following is monohybrid cross

1.None of these

2.TT x tt

3.TTYy x Ttyy

4.Both of these

Question 3 of 10

Question 4 of 10

4. In which of the following cases, genotypic and phenotypic ratio will remain same in F2 generation

1.Law of Segregation

2.Test cross

3.Incomplete dominance

4.Law of independent assortment

Question 4 of 10

Question 5 of 10

5. Which of the following condition is hybrid

1.tt

2.All of these

3.TT

4.Tt

Question 5 of 10

Question 6 of 10

6. The gene which controls ABO group has how many alleles in an individual

1.One

2.Three

3.Two

4.Four

Question 6 of 10

Question 7 of 10

7. The position of a gene on chromosome is called

1. Locus

2.Habitat

3.Location

4.Position

Question 7 of 10

Question 8 of 10

8. How many pairs of homologous chromosomes are present in Pisum sativum

1.Five pairs

2.Seven pairs

3. Six pairs

4.Eight pairs

Question 8 of 10

Question 9 of 10

9. Filial is a Latin word. It means

1.Spring

2.Descendent

3.Issue

4.Progeny

Question 9 of 10

Question 10 of 10

10. Which of the following characters of pea plant is dominant?

1.Axial flowers

2.Wrinkled seeds

3.White flowers

4.Yellow pods

Question 10 of 10

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