Biology

The major function of the cell membrane is that it?

A. delimits the cytoplasm B. synthesizes protein C. breaks down worn-out organelles D. is the site for photosynthesis Correct Answer:…

6 years ago

Which of the following is a tissue?

A. Volvox B. Chlamydomonas C. Epidermis D. Paramecium Correct Answer: Option C C. Epidermis

6 years ago

Which of the following can be considered as a direct evidence of evolution?

A. Classification B. Comparative anatomy C. Comparative embryology D. Fossil record Correct Answer: Option D D. Fossil record

6 years ago

The following are social insects except?

A. wasps B. termites C. bees D. cotton stainer Correct Answer: Option D D. cotton stainer

6 years ago

Which of the following is an adaptation by plants to reduce the rate of water loss in a dry habitat? Possession of

A. a few sunken stomata on the lower epidermis only B. long leaf tendrils C. leaves with serrated edges D.…

6 years ago

The genes affecting the same trait and are located at the same position on the homologous chromosomes are called?

A. autosomes B. alleles C. loci D. chromatids Correct Answer: Option B B. alleles

6 years ago

In humans, sex is determined by?

A. two homologous chromosomes B. a dominant gene for maleness present in a male C. two similar sex chromosomes in…

6 years ago

The name given to a sudden change in a gene or chromosome that can be passed on to the offspring is?

A. inheritance B. linkage C. alleles D. mutation Correct Answer: Option D D. mutation

6 years ago

Which of the following is not a morphological variation in human beings?

A. Size B. Blood groups C. Colour D. Fingerprints. Correct Answer: Option B B. Blood groups

6 years ago