Advertisements
Advertisements
Question
Mutation alerts the hereditary material. Give reasons.
Advertisements
Solution
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.
RELATED QUESTIONS
Differentiate Between Homozygous shows Heterozygous.
- A pure tall plant (TT) is crossed with a pure dwarf plant (tt). Draw Punnett squares to show
- F1, generation
- F2 generation.
- Give the phenotype of F2 generation.
- Give the phenotype and genotypic ratios of the F1 and F2 generations.
Explain the Term Variation.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
Give Technical Term:
The individuals having dissimilar pairs of genes.
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.
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
Complete the following sentence with appropriate word:
Upon _______the diploid condition is restored.
Multiple Choice Question
When an individual has both the genes of a contrasting character, it is said to be:
Multiple choice question.
Phenotypic ratio of incomplete dominance in Mirabilis jalapa.
Explain a dihybrid cross with suitable example and checker board method.
Identify the genotype of peacock.
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
Alleles refer to ____________.
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
Define Alleles.
Two alternative forms of genes or alleles are located on ______.
In which region of chromosomes does crossing over take place?
What is dihybrid cross?
