Sunday

When a colour blind woman marries a normal man; what is the probability of their son being colour blind?

A. 25% B. 100% C. 50% D. 0% Correct Answer: Option B - 100% Explanation If a woman is colorblind,…

3 years ago

The structure that joins the two strands of a chromosome together is the?

A. spindle B. chromomere C. centromere D. chromatid Correct Answer: Option C - centromere Explanation Centromeres are chromosomal regions that…

3 years ago

Gaseous exchange in annelids is more advanced and efficient compared to flatworms because?

A. the cells of their epidermis have no blood capillaries B. they have well developed respiratory structures C. their cylindrical…

3 years ago

The movement of sugars from the leaf to other parts of plant is?

A. guttation B. transpiration C. transportation D. translocation Correct Answer: Option D - translocation Explanation Translocation is the movement of…

3 years ago

An example of arboreal animal is?

A. squirrels B. duck C. pig D. rat Correct Answer: Option A - squirrels Explanation Arboreal animals are those animals…

3 years ago

The internal structure of a leaf that has larger air space is?

A. palisade mesophyll B. epidermis C. spongy mesophyll D. vascular bundles Correct Answer: Option D - vascular bundles Explanation The…

3 years ago

A universal recipient of blood belongs to blood group?

A. O B. AB C. B D. A Correct Answer: Option B = AB Explanation Blood donors with type O-…

3 years ago

Lack of nucleus is a feature in?

A. osteocyte B. neurone C. erythrocyte D. leucocyte Correct Answer: Option C - erythrocyte Explanation Red blood cells are microscopic…

3 years ago

The development of big muscles by a wrestler is an example of?

A. acquired characteristics B. inherited characteristics C. mutation D. atrophication Correct Answer: Option A - acquired characteristics Explanation Acquired traits…

3 years ago

The components of blood in man are?

A. red blood cells, white blood cells, plasma and water B. red blood cells, white blood cells, and plasma C.…

3 years ago