Advertisements
Advertisements
प्रश्न
What is crossing-over? What are the factors affecting it?
Advertisements
उत्तर
Crossing-over is the interchange of the parts of the chromatid of a pair of chromosomes. High temperature, X-rays and radiation treatment are the factors affecting crossing-over.
APPEARS IN
संबंधित प्रश्न
Give the significance of mutation.
State Mendel’s Law of Dominance.
Give the Phenotype of the F2 generation.
Explain the Term Crossing-over.
Give Technical Term:
A twin consisting of a brother and a sister were born to a lady. What is the name of such a type of twins?
Complete the following sentence with appropriate word:
______is the hereditary unit.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Genes are responsible for genetic characters.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Mendel experimented upon plants of Oryza sativa.
Multiple choice question.
Phenotypic ratio of incomplete dominance in Mirabilis jalapa.
Give any two points of difference between homozygous and heterozygous.
Explain test cross with suitable example and state its ratios.
Hybrid is an offspring from a cross between genetically different parents.
______ type/s of gametes is/are expected to be formed by the organism with genotype AABBCC.
A pea plant with the genotype YyRr is crossed with another pea plant with the genotype yyrr. The expected phenotypic ratio of individuals formed will be ______
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
Two alternative forms of genes or alleles are located on ______.
Mendel was successful in his experiments because:
Rewrite the correct form of the statement by changing the first or last word only:
The full complement of DNA of an organism is termed as genetics.
