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प्रश्न
Explain the Term Crossing-over.
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उत्तर
Crossing-over: The phenomenon of the exchange of genetic material between two non¬sister chromatids.
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संबंधित प्रश्न
What is a gene? How is it related to heredity?
Give the Phenotypic and Genotypic ratio of the F2 and F2 generation.
Explain the Term Heredity.
Name the following:
The genetic composition of an organism.
Give Technical Term:
A virus with DNA as heredity material.
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
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.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Mutation can be brought about artificially.
Multiple Choice Question
Genetics is a branch of biology dealing with:
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
Hybrid is an offspring from a cross between genetically different parents.
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
Identify the possible genotypic ratio in F2 generation if a plant producing red flowers (RR) is crossed with another plant of the same species that produces white flower (rr).
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
In which region of chromosomes does crossing over take place?
Which one of the following character is recessive in case of a pea plant?
Name any two genetic diseases in humans.
