The genetic makeup of an organism is its: MCQ with Answer and Explanation

The genetic makeup of an organism is its:
A. Allele
B. Karyotype
C. Genotype
D. Phenotype
Answer: Option C
Solution (By JKExamLibrary)
Genotype refers to the specific set of genes (allelic constitution) of an individual, e.g., TT, Tt, or tt for a trait. Phenotype is the observable characteristic, karyotype is the chromosome complement, allele is a variant form of a gene. The genotype determines the potential phenotype.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
The process that converts light energy into chemical energy in plants is:
A. Photosynthesis
B. Fermentation
C. Respiration
D. Translocation

Correct Answer: Option A


Explanation:
Photosynthesis captures light energy via chlorophyll and converts CO₂ and H₂O into glucose and O₂. Respiration releases energy from glucose, fermentation is anaerobic, translocation is movement of solutes.

This question belongs to: Science Biology
Question #2
Consider statements about photosynthesis: 1. Light reactions occur in the grana. 2. The Calvin cycle occurs in the stroma. 3. Oxygen is released from CO2. Which are correct?
A. 1, 2 and 3
B. 2 and 3 only
C. 1 and 3 only
D. 1 and 2 only

Correct Answer: Option D


Explanation:
Photosynthesis consists of light-dependent reactions occurring in the thylakoid membranes (grana) where water is split, releasing oxygen, and light-independent reactions (Calvin cycle) occurring in the stroma where CO2 is fixed. The oxygen released during photosynthesis comes from the photolysis of water, not from carbon dioxide. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology
Question #3
The part of the neuron that is usually myelinated and conducts impulses away from the cell body is the:
A. Cell body
B. Dendrite
C. Axon
D. Synapse

Correct Answer: Option C


Explanation:
The axon is a long, slender projection of the neuron that carries nerve impulses (action potentials) away from the soma to other neurons, muscles, or glands. Axons are often insulated by a myelin sheath. Dendrites receive signals, the cell body contains the nucleus, the synapse is the junction.

This question belongs to: Science Biology