Mock Questions

Mock Questions

1. Which of the following is not an attribute of a population?

  1. Sex ratio
  2. Natality
  3. Mortality
  4. Species interaction

Correct answer: (D)
Species interaction

2. The process of growth is maximum during

  1. Log phase
  2. Lag phase
  3. Senescence
  4. Dormancy

Correct answer: (A)
Log phase

3. The roots that originate from the base of the stem are

  1. Fibrous roots
  2. Primary roots
  3. Prop roots
  4. Lateral roots

Correct answer: (A)
Fibrous roots

4. In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?

  1. ZIFT and IUT
  2. GIFT and ZIFT
  3. ICSI and ZIFT
  4. GIFT and ICSI

Correct answer: (A)
ZIFT and IUT

5. Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups.

  1. The gene (I) has three alleles.
  2. A person will have only two of the three alleles.
  3. When IA and IB are present together, they express same type of sugar.
  4. Allele 'i' does not produce any sugar.

Correct answer: (C)
When IA and IB are present together, they express same type of sugar.

6. Choose the correct pair from the following

  1. Ligases - Join the two DNA molecules
  2. Polymerases - Break the DNA into fragments
  3. Nucleases - Separate the two strands of DNA
  4. Exonucleases - Make cuts at specific positions within DNA

Correct answer: (A)
Ligases - Join the two DNA molecules

7. Select the correct match

  1. Haemophilia − Y linked
  2. Phenylketonuria − Autosomal dominant trait
  3. Sickle cell anaemia − Autosomal recessive trait, chromosome-11
  4. Thalassemia − X linked

Correct answer: (C)
Sickle cell anaemia − Autosomal recessive trait, chromosome-11

8. The infectious stage of Plasmodium that enters the human body is

  1. Trophozoites
  2. Sporozoites
  3. Female gametocytes
  4. Male gametocytes

Correct answer: (B)
Sporozoites

9. Identify the substances having glycosidic bond and peptide bond, respectively in their structure

  1. Chitin, cholesterol
  2. Glycerol, trypsin
  3. Cellulose, lecithin
  4. Inulin, insulin

Correct answer: (D)
Inulin, insulin

10. The plant parts which consist of two generations - one within the other
(a) Pollen grains inside the anther
(b) Germinated pollen grain with two male gametes
(c) Seed inside the fruit
(d) Embryo sac inside the ovule

  1. (a) only
  2. (a), (b) and (c)
  3. (c) and (d)
  4. (a) and (d)

Correct answer: (D)
(a) and (d)