Free Inheritance MCQs with Answers
1,238 Inheritance MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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Read the Inheritance notesFree MDCAT chapter notes with key terms1,238 questions · page 13 of 62
- A. Gene pool
- B. Gene
- C. Phenotype
- D. Allele
Explanation: "Allele" is the word that we use to describe the alternative form or versions of a gene.
Correct answer: Allele- A. 50
- B. 100
- C. 200
- D. 400
Explanation: A sample population of 100 diploid plants, some of which bear red lowers, others bearing white lowers has a sum total of 200 of all the…
Correct answer: 200- A. Modern Genetics
- B. Classical Genetics
- C. None of These
- D. Both
Explanation: Gregor Johann Mendel (1822 - 1884) is known as the pioneer of modern genetics.
Correct answer: Classical Genetics- A. De Vries
- B. Tschermak-Seysenegg
- C. Correns
- D. All of the above
Explanation: Hugo de Vries, Carl Correns and Erich von Tschermak-Seysenegg were the three scientists who rediscovered Mendel's laws in 1900.
Correct answer: All of the above- A. 12 years
- B. 14 years
- C. 16 years
- D. 18 years
Explanation: In 1900, 16 years after his death, three botanists; Correns, De Varies, and Tschermach independently rediscovered and acknowledged his work.
Correct answer: 16 years- A. Pod shape
- B. Seed colour
- C. Plant colour
- D. Flower colour
Explanation: Mendel studied 7 characters of the pea plant in his experiments. The characters chosen by Mendel were seed color, seed shape, stem height…
Correct answer: Plant colour- A. Round wrinkle
- B. Purple white
- C. Green red
- D. Yellow green
Explanation: Mendel studied 7 characters of the pea plant in his experiments. The characters chosen by Mendel were seed color, seed shape, stem height…
Correct answer: Green red248. Mendel studied:
- A. Alium cepa
- B. Cassia fistula
- C. Pisum sativum
- D. Solanum tuberosum
Explanation: In this famous experiment, Mendel purposefully cross- pollinated pea plants based on their different features to make important…
Correct answer: Pisum sativum- A. 2 : 1
- B. 4 : 1
- C. 3 : 1
- D. 1 : 2 : 1
Explanation: Mendel actually observed 3 ; 1 phenotypic ratio in F2. His phenotypic data of F3 can also be explained on the basis of 1 : 2 : 1 genotypic…
Correct answer: 1 : 2 : 1- A. 1/4
- B. 1/3
- C. 1/2
- D. None of the above
Explanation: He noted that 1/3 of the F2 round produced only round, while 2/3 of the F2 round produced both round and wrinkled in.
Correct answer: 1/3- A. Round
- B. Wrinkled
- C. Both round and wrinkled
- D. None of the above
Explanation: He noted that 1/3 of the F2 round produced only round, while 2/3 of the F2 round produced both round and wrinkled in.
Correct answer: Both round and wrinkled- A. 2 : 1
- B. 4 : 1
- C. 3 : 1
- D. 1 : 2 : 1
Explanation: He noted that 1/3 of the F2 round produced only round, while 2/3 of the F2 round produced both round and wrinkled in.
Correct answer: 3 : 1- A. Gene
- B. Allele
- C. Factor
- D. Trait
Explanation: "Allele" is the word that we use to describe the alternative form or versions of a gene.
Correct answer: Allele- A. Gene
- B. Factor
- C. Allele
- D. Trait
Explanation: Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
Correct answer: Gene- A. 2 : 1
- B. 4 : 1
- C. 3 : 1
- D. 1 : 2 : 1
Explanation: Mendel actually observed 3 ; 1 phenotypic ratio in F2. His phenotypic data of F3 can also be explained on the basis of 1 : 2 : 1 genotypic…
Correct answer: 3 : 1- A. 1/4
- B. 2/4
- C. 3/4
- D. 1/3
Explanation: Since there are 2 individual which are heterozygous so the Punnett square will give 2/4
Correct answer: 2/4- A. Monohybrid cross
- B. Test cross
- C. Dihybrid cross
- D. Reciprocal cross
Explanation: The test cross is another fundamental tool devised by Gregor Mendel. In its simplest form, a test cross is an experimental cross of an…
Correct answer: Test cross- A. Homozygous recessive
- B. Heterozygous
- C. Homozygous dominant
- D. Heterozygous dominant
Explanation: If the seed is homozygous round(RR) it will grow into a pea plant that forms all gametes with only the `R` allele.
Correct answer: Homozygous dominant- A. Homozygous recessive
- B. Heterozygous
- C. Homozygous dominant
- D. Heterozygous dominant
Explanation: If the seed is heterozygous round (Rr), it will grow into a plant that forms half the gametes, with 'R`and half with `r` allele.
Correct answer: Heterozygous dominant- A. 1 : 1
- B. 3 : 1
- C. 1 : 2 : 1
- D. 1 : 2
Explanation: When the heterozygous parent is crossed with recessive then the offspring ratio will be 1:1
Correct answer: 1 : 1