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Explain the Term Alleles.

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प्रश्न

Explain the term Alleles.

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उत्तर

Alleles: Alleles are the alternative forms of the same gene. For example, tallness and dwarfism are the two alternative forms of a gene for height and are called alleles. Similarly, attached ear lobes and free ear lobes are alleles for the type of ear lobes.

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अध्याय 2: Fundamentals of Genetics - Explain the Terms

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आईसीएसई Biology [English] Class 10 ICSE
अध्याय 2 Fundamentals of Genetics
Explain the Terms | Q 10

संबंधित प्रश्न

What is Genetics?

On which plant Mendel performed his experiments?

Explain the Term Mutation.


Explain the Term Recessive character.


Name the following:

The study of heredity and variation.


Give Technical Term:

Transmits characteristics from parents to offsprings.


Give Technical Term:

A single egg was fertilized by a single sperm. But twins derived from that egg were born. What is the name of such type of twins?


Complete the following sentence with appropriate word:

______is the hereditary unit.


Complete the following sentence with appropriate word:

The small differences among individuals are called ________.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

DNA has a double-helical structure.


Multiple Choice Question

Genetics is a branch of biology dealing with:


Explain a dihybrid cross with suitable example and checker board method.


The word chromosome was coined by


Give any two points of difference between homozygous and heterozygous.


Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.


Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:

(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)


During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.


An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?


What is dihybrid cross?


Define the following term:

Gene


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