Heredity and evolution Worksheet-7

Heredity and evolution Worksheet-7

 

  1. The group of simplest organisms is:

A. Thallophyta                              B. Protista

C. Porifera                                     D. Fungi

 

  1. Genetic drift can occur because of:

A. Accidental phenomena B. Variation

C. Mutation                                   D. All of these

 

  1. The number of chromosomes in gametes of human beings is:

A. 23                   B. 46                   C. 23 pairs         D. 46 pairs

 

  1. How many daughter cells are produced at the end of single meiotic cell division cycles?

A. 4                     B. 8                     C. 16                    D. 64

 

  1. Loss of body weight is an example of:

A. Inherited trait                          B. Acquired trait

C. Somatic Trait                           D. None of these

 

  1. Sex chromosomes are also known as:

A. Allosomes

B. Autosomes

C. Homologous Chromosomes

D. Homozygous chromosomes

 

  1. The blood group of a daughter produced by a couple having blood group A with genotype IAIA and IAIO will be

A. A

B. O

C. I

D. Data incomplete to predict the blood group

 

  1. Which of the following is a dominant allele for the trait blood group?

A. A                     B. B                     C. A and B         D. A, B and O

 

  1. Which of the following organisms can change their sex post birth?

A. Lizards          B. Turtles           C. Crocodiles    D. Snails

 

  1. The process by which RNA is converted to protein is known as:

A. Replication                               B. Transcription

C. Translation                               D. Recombination

 

Answer Key:

  1. B
  2. D
  3. A
  4. A
  5. B
  6. A
  7. D
  8. C
  9. D
  10. C