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Law of Independent Assortment Quiz

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Questions and Answers

What did Mendel study to formulate the Law of Independent Assortment?

Inheritance patterns of 1 trait

Inheritance patterns of 3 contrasting traits

Inheritance patterns of 4 traits

Inheritance patterns of 2 contrasting traits (correct)

What happens to allele pairs during fertilization according to the Law of Independent Assortment?

Allele pairs randomly unite (correct)

Allele pairs always separate

Allele pairs do not unite

Allele pairs unite based on dominance

What is the phenotypic ratio resulting from the Law of Independent Assortment?

4:4

1:2:1

9:3:3:1 (correct)

3:1

How many different genotypes result from the Law of Independent Assortment?

9 (D) Signup and view all the answers

What is the physical basis for the Law of Independent Assortment?

Random separation and union of allele pairs (B) Signup and view all the answers

Who formulated the Law of Independent Assortment after the Law of Segregation?

Dr. Grace Prabhakar, Assistant Professor, Department of Biotechnology, St. Joseph’s University, Bangalore Signup and view all the answers

What does the Law of Independent Assortment state about allele pairs during fertilization?

Allele pairs randomly unite during fertilization Signup and view all the answers

What is the phenotypic ratio resulting from the Law of Independent Assortment?

9:3:3:1 (9 green constricted pods, 3 green smooth pods, 3 yellow constricted pods, 1 yellow smooth pod) Signup and view all the answers

How many different genotypes result from the Law of Independent Assortment?

9 different genotypes Signup and view all the answers

What experiment did Mendel perform in relation to the Law of Independent Assortment?

Mendel performed dihybrid crosses to study the inheritance patterns of 2 traits that contrasted in parents Signup and view all the answers

Study Notes

Mendel's Study and the Law of Independent Assortment

Mendel studied the inheritance of two different traits, each with two alleles, to formulate the Law of Independent Assortment.
During fertilization, allele pairs assort independently, resulting in a random combination of alleles from each parent.

Characteristics of the Law of Independent Assortment

The Law of Independent Assortment results in a phenotypic ratio of 9:3:3:1.
This law results in 16 different genotypes.

Physical Basis and Formulation

The physical basis for the Law of Independent Assortment is the random orientation of chromosomes during metaphase I of meiosis.
Mendel formulated the Law of Independent Assortment after discovering the Law of Segregation.

Key Principles

The Law of Independent Assortment states that allele pairs assort independently during fertilization, resulting in a random combination of alleles.
Mendel performed a dihybrid cross experiment, crossing two pea plants with different traits, to study the Law of Independent Assortment.

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Description

Test your understanding of the Law of Independent Assortment with this quiz by Dr. Grace Prabhakar, focusing on the separation and random pairing of allele pairs during gamete formation and fertilization. Explore inheritance patterns through dihybrid crosses to deepen your knowledge of genetic principles.