Punjab 10th Class Biology Chapter 6 Inheritance Mcqs Test Online

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Question 1 of 8

Biology

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

1.Genotype

2.Karyotype

3.Phenotype

4.Physical type

Question 1 of 8

Question 2 of 8

2. 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:

1.¼ green, ¾ yellow

2.¼ Yellow ¾ green

3.All green

4.All Yellow

Question 2 of 8

Question 3 of 8

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

1. 5

2.1

3.4

4.2

Question 3 of 8

Question 4 of 8

4. 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.Have no natural predators

2.Are best adapted to the environment

3.Are largest and most aggressive

4.Are born first and grow fastest

Question 4 of 8

Question 5 of 8

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

1.Mizygous

2.Heterozygous

3.Imozygous

4.Homologous

Question 5 of 8

Question 6 of 8

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

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

2.Genes consist of a long sequence of DNA

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

4.Genes are located on chromosomes

Question 6 of 8

Question 7 of 8

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

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

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

3.Its phenotype will be white flowers

4.It has a homozyqous dominant genotype

Question 7 of 8

Question 8 of 8

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

1.Explanation of the patterns of in heritance

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

3.The idea that genes are found on chromosomes

4.The discovery of alleles

Question 8 of 8

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