Questions
Question 1 Multiple Choice (Single Answer)
Which of the following branches of science deals with heredity and variation?
- Genetics
- Zoology
- Biotechnology
- Botany
Question 2 Multiple Choice (Single Answer)
Genes express their trait by getting converted into
- chromosomes
- DNA
- proteins
- vitamins
Question 3 Multiple Choice (Single Answer)
Human traits are influenced by the DNA(s) of
- mother
- father
- siblings
- Both (1) and (2)
Question 4 Multiple Choice (Single Answer)
The theory of natural selection was popularised by the book ‘Origin of Species’ written by
- Lamarck
- Darwin
- Wallace
- Mendel
Question 5 Multiple Choice (Single Answer)
What is Darwin’s explanation on the way in which evolution occurs?
- God determines which species should evolve.
- Adaptations enable one species to produce more offsprings by natural selection.
- Certain species undergo mutations.
- The traits used most often persist longer.
Question 6 Multiple Choice (Single Answer)
Hereditary traits are determined by specific
- proteins
- genes
- sexes
- characters
Question 7 Multiple Choice (Single Answer)
Which of the following represents a mixed-dominant condition in an offspring?
- TT
- Tt
- tt
- TR
Question 8 Multiple Choice (Single Answer)
Which of the following is not correct regarding DNA structure?
- Base pairs are formed by hydrogen bonds.
- It contains nitrogenous base pairs.
- It is a single helix structure.
- Strands are made of sugar-phosphate backbone.
Question 9 Multiple Choice (Single Answer)
Natural selection selects individuals who are
- most adapted for survival
- least adapted for survival
- more in number
- less in number
Question 10 Multiple Choice (Single Answer)
How many pairs of chromosomes are present in human beings?
- 25
- 24
- 23
- 22