Advertisements
Advertisements
Question
Explain the Term Crossing-over.
Advertisements
Solution
Crossing-over: The phenomenon of the exchange of genetic material between two non¬sister chromatids.
APPEARS IN
RELATED QUESTIONS
What is a gene? How is it related to heredity?
Give the Phenotypic and Genotypic ratio of the F2 and F2 generation.
Name the following:
The genetic composition of an organism.
Give Technical Term:
A virus with DNA as heredity material.
Give Technical Term:
The individuals having dissimilar pairs of genes.
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
When an individual has both the genes of a contrasting character, it is said to be:
The word chromosome was coined by
A recessive factor is altered by the presence of a dominant factor.
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
______ type/s of gametes is/are expected to be formed by the organism with genotype AABBCC.
Which one of the following genotype will yield only one type of gamete?
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.
Two alternative forms of genes or alleles are located on ______.
Match the items given in Column I with those listed in Column II. Choose the answer with correct combination of alphabets of the two columns.
| Column I | Column II |
| A. Monohybrid cross | 1. T and t |
| B. Test cross | 2. TT |
| C. Alleles | 3. TT × tt |
| D. Homozygous tall | 4. tt |
| 5. Tt × tt |
