BS Bachelor of Science: Intro to Life Sciences 5

Question 1

Which branch of life sciences studies the structure of organisms and their parts?

Accepted Answer

Anatomy

Answer

Anatomy is the branch of biology concerned with the structure and organization of living organisms.

Question 2

Which type of RNA carries amino acids to the ribosome during translation?

Accepted Answer

tRNA

Answer

Transfer RNA (tRNA) has an anticodon that matches mRNA codons and carries the corresponding amino acid to the ribosome.

Question 3

The concept of 'survival of the fittest' in evolutionary theory refers to:

Accepted Answer

Reproductive success in a given environment

Answer

'Fitness' in evolutionary biology specifically means reproductive success — passing genes to the next generation.

Question 4

Which cellular process produces two daughter cells that are genetically identical to the parent cell?

Accepted Answer

Mitosis

Answer

Mitosis produces two genetically identical diploid daughter cells used for growth, repair, and asexual reproduction.

Question 5

The pH scale measures hydrogen ion concentration; a solution with pH 4 compared to pH 6 is:

Accepted Answer

100 times more acidic

Answer

The pH scale is logarithmic, so a difference of 2 pH units means 10² = 100-fold difference in H⁺ concentration.

BS - Bachelor of Science Practice Test