Advertisements
Advertisements
प्रश्न
Mutation alerts the hereditary material. Give reasons.
Advertisements
उत्तर
Mutation alerts the hereditary materiel of an organism's cell and results in a change in certain characters of traits. For example:
(a) Sickle-cell anemia is a blood disease caused by a gene mutation. The mutation causes a change in the DNA which controls the productivity of RBCs.
(b) Radioactive radiations also alter the gene structure and their effects can be seen generation after generation.
APPEARS IN
संबंधित प्रश्न
The phenotypic ratio of incomplete dominance is ______.
Give the significance of mutation.
What is crossing-over? What are the factors affecting it?
Explain the Term Heredity.
Explain the Term Crossing-over.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
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:
Upon _______the diploid condition is restored.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A female is responsible for the sex of the progeny.
Write the functional activity of the following structure:
Genes
Write the functional activity of the following structure:
Autosomes
Explain a dihybrid cross with suitable example and checker board method.
The word chromosome was coined by
Explain test cross with suitable example and state its ratios.
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
