Punjab 10th Class Biology Chapter 6 Inheritance Mcqs Test Online

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Question 1 of 8

Biology

1. An organism has two different alleles for a single trait. Its genotype is said to be:

1.Homologous

2.Imozygous

3.Mizygous

4.Heterozygous

Question 1 of 8

Question 2 of 8

2. Mendel’s primary contribution to our understanding of inheritance was:

1.The discovery of alleles

2.The idea that genes are found on chromosomes

3.Explanation of the patterns of in heritance

4.Determining that information’s contained in DNA are for protein synthesis

Question 2 of 8

Question 3 of 8

3. In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green plant, where green pod colour is dominant, the resulting off springs (F1 generation) will be:

1.All Yellow

2.All green

3.¼ Yellow ¾ green

4.¼ green, ¾ yellow

Question 3 of 8

Question 4 of 8

4. How many genetically different kinds of gametes an individual with genotype AAbb can produce?

1.2

2. 5

3.1

4.4

Question 4 of 8

Question 5 of 8

5. Which of the following statements regarding genes is FALSE?

1.Each cell contains a single cop, of every gene

2.A gene contains information for the production of a protein

3.Genes consist of a long sequence of DNA

4.Genes are located on chromosomes

Question 5 of 8

Question 6 of 8

6. An organism’s expressed physical trait, such as seed colour or pod shape, is called its:

1.Physical type

2.Karyotype

3.Phenotype

4.Genotype

Question 6 of 8

Question 7 of 8

7. Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According to Darwin, the offspring that are most likely to survive are those that;

1.Are born first and grow fastest

2.Are largest and most aggressive

3.Are best adapted to the environment

4.Have no natural predators

Question 7 of 8

Question 8 of 8

8. A purple-flowered pea plant has the genotype PP. Which of the following statements about this plant is FALSE?

1.All the gametes produced will have the same flower colour allele

2.When bred to a white-flowered plant, all offspring will be purple flowered

3.It has a homozyqous dominant genotype

4.Its phenotype will be white flowers

Question 8 of 8

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