Mendelian Genetics: Multiple Type Questions
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This quiz is very simple consisting of multiple choice, true/false and fill in the blank question. All the best!
Questions and Answers
- 1.
From the following which is an example of a heterozygous allele.
- A.
Rr
- B.
WWRR
- C.
Rr
Correct Answer
C. RrExplanation
Heterozygous are when the allele are of two different kind, that is Rr.
rr, RR, wwrr and WWRR are both homozygous.Rate this question:
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- 2.
Which of the following cross will give a 1:2:1 genotypic ratio.
- A.
Aa X Aa
- B.
Aa X AA
- C.
AA X Aa
Correct Answer
A. Aa X AaExplanation
Draw a punnett square (monohybrid cross)
Aa X Aa will give 1 AA: 2Aa: 1aa
aa X AA will give all Aa
AA X Aa will give 2 AA: 2AaRate this question:
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- 3.
Mendel did the experiment with peas to explain the inheritance pattern from generation to generation.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Mendel conducted experiments with peas in order to understand how traits are passed down from one generation to the next. By carefully observing and recording the characteristics of different pea plants, he was able to establish the principles of inheritance and develop the concept of dominant and recessive traits. This groundbreaking research laid the foundation for modern genetics and our understanding of how traits are inherited in organisms.Rate this question:
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- 4.
Law of Independent Assortment explains the inheritance of single traits.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Law of Independent Assortment explains the inheritance of two traits.
Law of segregation explains the inheritance of single trait.Rate this question:
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- 5.
Mendel used the _____________ cross to explain the separation of a gene pair.
Correct Answer
monohybridExplanation
Mendel used the monohybrid cross to explain the separation of a gene pair. In a monohybrid cross, Mendel crossed two individuals that were heterozygous for a single trait. This allowed him to observe the inheritance pattern of a single gene and understand how the gene pair separates during gamete formation. By studying the offspring of these crosses, Mendel was able to establish the principles of inheritance and develop his laws of segregation and independent assortment.Rate this question:
- 6.
Observable traits/ characteristics of an organism are called _______________.
Correct Answer
PhenotypeExplanation
Observable traits or characteristics of an organism are referred to as its phenotype. This includes any physical or behavioral attributes that can be observed or measured, such as eye color, height, or temperament. The phenotype is the result of the interaction between an organism's genetic makeup (genotype) and its environment. It is what allows us to visually distinguish between individuals and plays a crucial role in understanding the inheritance and expression of traits in populations.Rate this question:
- 7.
Identify the law which explains the Ratio obtained by crossing Rr X Rr .______________________.
Correct Answer
Law of segregation
segregationExplanation
Rr X Rr will give 1 RR : 2 Rr : 1 rr.
THis was Mendel's mononybrid experiment with peas.Rate this question:
- 8.
If a cross between two mice produce 10 black mice and 3 white mice. Which skin color is dominant?
- A.
White
- B.
Black
- C.
None
- D.
Both
Correct Answer
B. BlackExplanation
Black (most of the offspring are black so black is dominant)Rate this question:
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- 9.
Monohybrid cross is a cross between two individual in which inheritance of two traits are considered.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Dihybrid cross is a cross between two individual in which inheritance of two traits are considered.
monohybrid cross is a cross between two individual in which inheritance of single traits are considered.Rate this question:
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- 10.
Write the Phenotype of the offspring of the monohybrid cross below.hint: the tall allele (T) is dominant.
Correct Answer
TallExplanation
since (T)tall is dominant Tt will be Tall as well.Rate this question:
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Mar 21, 2023Quiz Edited by
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Oct 10, 2010Quiz Created by
Swaz23