Biology

Q.

What is the role of the acid in our stomach?

Q.

What are the raw materials for photosynthesis?

Q.

What are the 4 steps of translation?

Q. How many ATP molecules are produced during aerobic respiration of one molecule of glucose?

1. 24
2. 3
3. 38
4. 2

Q.

Which of the following plant parts consist of two generations-one within the other?

1. Embryo sac inside the ovule

2. Pollen grains inside the anther

3. Germinated pollen grain with two male gametes

4. Both (A) and (B)

Q.

How many muscles are found in the human body?

Q.

What are four differences between prokaryotic and eukaryotic cells?

Q.

Write the difference between Eukaryotes and Prokaryotes?

Q. Net gain of ATP molecules during glycolysis is

1. 24
2. 38
3. 4
4. 2

Q.

Which are the two major components of the biotic environment?

Q.

Can a child have a different blood type than their parents?

Q.

What are the hormones secreted by the placenta?

Q.

What is the difference between pulmonary and systemic circulation?

Q.

What are the applications of DNA fingerprinting?

Q. The resting membrane potential is established primarily due to:

1. Sodium-potassium pump
2. Efflux of potassium
3. Influx of sodium
4. Both b and c

Q. Which among the following is not a haploid structure in angiosperms?

1. Antipodals
2. Endosperm
3. Egg
4. Synergid

Q.

During which phase(s) of the cell cycle, the amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

1. Only G2

2. G1 and S

3. G0 and G1

4. G2 and M

Q.

Potato is a stem and sweet potato is a root. Justify the statement.

Q. In a population of 1000 individuals 360 belongs to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is

1. 0.4
2. 0.5
3. 0.6
4. 0.7

Q. Venereal diseases can spread through:
(a) Using sterile needles
(b) Transfusion of blood from infected person
(c) Infected mother to foetus
(d) Kissing
(e) Inheritance

Choose the correct answer from the options given below

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

Q.

What are anomers?

Q.

What is the baltimore classification?

Q. Which of the following is an exclusive characteristic of living things?

1. Isolated metabolic reactions in vitro
2. Perception of events happening in the environment
3. Increase in mass
4. All of these

Q.

Define 1. Hypogynous 2. Perigynous 3. Epigynous Flowers?

Q.

What are the applications of fermentation?

Q.

Living organisms can be unexceptionally distinguished from non-living things on the basis of their ability for:

1. Growth and movement
2. Responsiveness to touch
3. Interaction with the environment and progressive evolution
4. Reproduction

Q.

Why is meiosis called a reduction division?

Q.

Opposite gender of goose

Q.

What are the steps of the lytic cycle?

Q.

What is back cross?