Advertisements
Advertisements
प्रश्न
Explain the Term Crossing-over.
Advertisements
उत्तर
Crossing-over: The phenomenon of the exchange of genetic material between two non¬sister chromatids.
APPEARS IN
संबंधित प्रश्न
What is crossing-over? What are the factors affecting it?
Explain the Term Mutation.
Explain the Term Recessive character.
Give Technical Term:
A virus with DNA as heredity material.
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:
The physical expression of genes is called _________.
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.
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.
What is allelomorph?
Give any two points of difference between homozygous and heterozygous.
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
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 %.)
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.
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
Name any two genetic diseases in humans.
