GATE Biotechnology Life Sciences Mock Test | Zoology Practice Test

1. Acorn worms (Saccoglassus sp)belong to which ONE of the following Phyla?
Platyhelminthes
Achelminthes
Hemichordata (Chordata)
Annelida

2. A population of Bees develops resistance to pesticides and the trait gets fixed within a few generations. This is an example of
macroevolution
microevolution
stabilizing selection
disruptive selection

3. The nature of the polymorphic DNA fragment used for mapping is
dominant
recessive
partial dominant
codominant

4. The sex of a Drosophila melangogaster, which has 4 copies of X chromosomes and 4 sets of autosomes will be
female
male
metafemale
metamale

5. When cells are treated with cyanide, which ONE of the following organelles will have the highest level of cyanide inside?
Mitochondria
Peroxisomes
Lysosomes
Endoplasmic reticulum

6. Which one of the following is often a life threatening systemic inflammatory response
Tuberculosis
Septic shock
Hypertension
Lupus erythematosus

7. During the gastrulation stage of amphibian development, ectoderm formation takes place by the expansion of epthelial cell sheet over mesodermal cells. This type of cell movement is termed as
ingression
epiboly
involution
delamination

8. Which one of the following organs is incorrectly paired with its function?
Intestinal villi- Absorption
Epiglottis- Closure of larynx
Gall bladder - Carbohydrate digestion
Parietal cells - Hydrochloric acid

9. Which one of the following life cycle stages of Plasmodium falciparum is infectious?
Sporozoite
Merozoite
Cryptozoite
Trophozoite

10. Which one of the following is a function of intermediate filaments?
Cytoplasmic streaming
Anchorage of the nucleus
Formation of tight junctions
Chromosome movement during the cell division
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