Nmdcat Skills Booster

The Hardy-Weinberg principle is used to describe the genetic variation in a population. Which of the following is NOT an assumption of this principle?

A) No mutations
B) Large population size
C) Non-random mating
D) No natural selection

In which phase of meiosis does crossing-over occur?

A) Prophase I
B) Metaphase I
C) Anaphase I
D) Telophase I

In which part of the digestive system does the majority of nutrient absorption occur?

A) Stomach
B) Large intestine
C) Small intestine
D) Esophagus

Answer: C) Small intestine

Which of the following is the primary function of the nephron in the human kidney?

A) To produce hormones that regulate blood pressure
B) To filter blood and form urine
C) To absorb nutrients from the digestive tract
D) To transport oxygen throughout the body

Answer: B) To filter blood and form urine

Which of the following structures is involved in protein synthesis?
a) Lysosome
b) Endoplasmic reticulum
c) Mitochondria
d) Chloroplast
Answer: b) Endoplasmic reticulum

What is the main role of the mitochondria in cells?
a) Protein synthesis
b) Energy production
c) Storage of genetic information
d) Digestion of cellular waste
Answer: b) Energy production

Which enzyme is responsible for the synthesis of RNA from a DNA template?
a) DNA polymerase
b) RNA polymerase
c) Ligase
d) Helicase
Answer: b) RNA polymerase

In which phase of the cell cycle does DNA replication occur?
a) G1 phase
b) S phase
c) G2 phase
d) M phase

Answer: b) S phase

Which factor is the primary driver of biodiversity loss?
a) Climate change
b) Natural disasters
c) Habitat destruction
d) Invasive species

Which of the following is a function of proteins?
a) Energy storage
b) Genetic information storage
c) Enzymatic catalysis
d) Cell wall structure

Which type of bond links the amino acids in a protein chain?

A) Hydrogen bond
B) Ionic bond
C) Peptide bond
D) Disulfide bond