Genetics (STUDY GUIDE 2026/2027
COMPLETE QUESTIONS WITH
VERIFIED CORRECT ANSWERS || 100%
GUARANTEED PASS NEWEST VERSION)
Description:
This study guide covers the core concepts of genetics, including heredity and variation, DNA,
genes, chromosomes, Mendelian genetics, mutations, inheritance patterns, gene expression, and
genetic technologies. It is designed to help learners revise key ideas through multiple-choice
questions.
Keywords:
Genetics, heredity, variation, DNA, genes, chromosomes, Mendel, alleles, genotype, phenotype,
mutation, inheritance, dominant, recessive, codominance, incomplete dominance, gene
expression, replication, transcription, translation, genetic engineering, biotechnology
Note:
This guide is based on the genetics content you provided. It is a strong revision resource, but
exam success also depends on your course outline and preparation.
100 Multiple Choice Questions
1. What is genetics?
A. The study of plants only
B. The study of heredity and variation ✅✅✅
C. The study of the atmosphere
D. The study of rocks
2. Heredity refers to:
A. The passing of traits from parents to offspring ✅✅✅
B. The death of cells
C. The movement of blood
D. The digestion of food
3. Variation means:
,A. Organisms are exactly the same
B. Differences among individuals of the same species ✅✅✅
C. Plants cannot reproduce
D. Animals do not inherit traits
4. The molecule that carries genetic information is:
A. RNA
B. ATP
C. DNA ✅✅✅
D. Protein
5. DNA stands for:
A. Deoxyribonucleic acid ✅✅✅
B. Dinucleic acid
C. Double nitrogen acid
D. Deoxyribose acid
6. The basic unit of heredity is the:
A. Cell
B. Tissue
C. Gene ✅✅✅
D. Organ
7. Genes are found on:
A. Ribosomes
B. Chromosomes ✅✅✅
C. Vacuoles
D. Lysosomes
8. Chromosomes are located in the:
A. Cell wall
B. Nucleus ✅✅✅
C. Cytoplasm
D. Membrane
9. Humans normally have how many chromosomes?
A. 23
B. 24
, C. 46 ✅✅✅
D. 48
10. Human body cells contain:
A. 23 chromosomes
B. 46 chromosomes ✅✅✅
C. 92 chromosomes
D. 12 chromosomes
11. Human sex cells contain:
A. 46 chromosomes
B. 23 chromosomes ✅✅✅
C. 44 chromosomes
D. 92 chromosomes
12. A chromosome is made mainly of:
A. Lipids and water
B. DNA and protein ✅✅✅
C. Sugar and starch
D. RNA and fat
13. A gene is best described as:
A. A section of DNA that codes for a trait ✅✅✅
B. A full chromosome
C. A protein molecule
D. A tissue in the body
14. Different forms of a gene are called:
A. Traits
B. Alleles ✅✅✅
C. Chromatids
D. Nucleotides
15. An organism’s genetic makeup is called:
A. Phenotype
B. Genotype ✅✅✅
C. Karyotype
D. Trait
COMPLETE QUESTIONS WITH
VERIFIED CORRECT ANSWERS || 100%
GUARANTEED PASS NEWEST VERSION)
Description:
This study guide covers the core concepts of genetics, including heredity and variation, DNA,
genes, chromosomes, Mendelian genetics, mutations, inheritance patterns, gene expression, and
genetic technologies. It is designed to help learners revise key ideas through multiple-choice
questions.
Keywords:
Genetics, heredity, variation, DNA, genes, chromosomes, Mendel, alleles, genotype, phenotype,
mutation, inheritance, dominant, recessive, codominance, incomplete dominance, gene
expression, replication, transcription, translation, genetic engineering, biotechnology
Note:
This guide is based on the genetics content you provided. It is a strong revision resource, but
exam success also depends on your course outline and preparation.
100 Multiple Choice Questions
1. What is genetics?
A. The study of plants only
B. The study of heredity and variation ✅✅✅
C. The study of the atmosphere
D. The study of rocks
2. Heredity refers to:
A. The passing of traits from parents to offspring ✅✅✅
B. The death of cells
C. The movement of blood
D. The digestion of food
3. Variation means:
,A. Organisms are exactly the same
B. Differences among individuals of the same species ✅✅✅
C. Plants cannot reproduce
D. Animals do not inherit traits
4. The molecule that carries genetic information is:
A. RNA
B. ATP
C. DNA ✅✅✅
D. Protein
5. DNA stands for:
A. Deoxyribonucleic acid ✅✅✅
B. Dinucleic acid
C. Double nitrogen acid
D. Deoxyribose acid
6. The basic unit of heredity is the:
A. Cell
B. Tissue
C. Gene ✅✅✅
D. Organ
7. Genes are found on:
A. Ribosomes
B. Chromosomes ✅✅✅
C. Vacuoles
D. Lysosomes
8. Chromosomes are located in the:
A. Cell wall
B. Nucleus ✅✅✅
C. Cytoplasm
D. Membrane
9. Humans normally have how many chromosomes?
A. 23
B. 24
, C. 46 ✅✅✅
D. 48
10. Human body cells contain:
A. 23 chromosomes
B. 46 chromosomes ✅✅✅
C. 92 chromosomes
D. 12 chromosomes
11. Human sex cells contain:
A. 46 chromosomes
B. 23 chromosomes ✅✅✅
C. 44 chromosomes
D. 92 chromosomes
12. A chromosome is made mainly of:
A. Lipids and water
B. DNA and protein ✅✅✅
C. Sugar and starch
D. RNA and fat
13. A gene is best described as:
A. A section of DNA that codes for a trait ✅✅✅
B. A full chromosome
C. A protein molecule
D. A tissue in the body
14. Different forms of a gene are called:
A. Traits
B. Alleles ✅✅✅
C. Chromatids
D. Nucleotides
15. An organism’s genetic makeup is called:
A. Phenotype
B. Genotype ✅✅✅
C. Karyotype
D. Trait
