Mendelian Genetics: Multiple Type Questions

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1/10 Questions

From the following which is an example of a heterozygous allele.
- Rr
- WWRR
- Rr

About This Quiz

Welcome!
This quiz is very simple consisting of multiple choice, true/false and fill in the blank question. All the best!

Mendelian Genetics: Multiple Type Questions - Quiz

2.

Which of the following cross will give a 1:2:1 genotypic ratio.
- Aa X Aa
- Aa X AA
- AA X Aa
Correct Answer

A. Aa X Aa

Explanation

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: 2Aa

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4
3.

Mendel did the experiment with peas to explain the inheritance pattern from generation to generation.
- True
- False
Correct Answer

A. True

Explanation

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.

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1
4.

Law of Independent Assortment explains the inheritance of single traits.
- True
- False
Correct Answer

A. False

Explanation

Law of Independent Assortment explains the inheritance of two traits.
Law of segregation explains the inheritance of single trait.

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1
5.

Mendel used the _____________ cross to explain the separation of a gene pair.

Correct Answer
monohybrid

Explanation
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.

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1
6.

Observable traits/ characteristics of an organism are called _______________.

Correct Answer
Phenotype

Explanation
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.

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7.

Identify the law which explains the Ratio obtained by crossing Rr X Rr .______________________.

Correct Answer
Law of segregation
segregation

Explanation
Rr X Rr will give 1 RR : 2 Rr : 1 rr.
THis was Mendel's mononybrid experiment with peas.

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8.

If a cross between two mice produce 10 black mice and 3 white mice. Which skin color is dominant?
- White
- Black
- None
- Both
Correct Answer

A. Black

Explanation

Black (most of the offspring are black so black is dominant)

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9.

Monohybrid cross is a cross between two individual in which inheritance of two traits are considered.
- True
- False
Correct Answer

A. False

Explanation

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.

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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
Tall

Explanation
since (T)tall is dominant Tt will be Tall as well.

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Quiz Edited by
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Oct 10, 2010

Quiz Created by
Swaz23

Mendelian Genetics: Multiple Type Questions

From the following which is an example of a heterozygous allele.

Quiz Preview

Which of the following cross will give a 1:2:1 genotypic ratio.

Mendel did the experiment with peas to explain the inheritance pattern from generation to generation.

Law of Independent Assortment explains the inheritance of single traits.

Mendel used the _____________ cross to explain the separation of a gene pair.

Observable traits/ characteristics of an organism are called _______________.

Identify the law which explains the Ratio obtained by crossing Rr X Rr .______________________.

If a cross between two mice produce 10 black mice and 3 white mice. Which skin color is dominant?

Monohybrid cross is a cross between two individual in which inheritance of two traits are considered.

Write the Phenotype of the offspring of the monohybrid cross below. hint: the tall allele (T) is dominant.