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Question
Define the following:
Homozygous
Solution 1
Homozygous - Diploid condition where both the alleles are identical is called homozygous.
Solution 2
Homozygous (pure): An individual having identical alleles for a particular character is homozygous for that character. It is pure or true breeding for that trait. e.g. TT, tt.
RELATED QUESTIONS
Which one of the following is an example of multiple alleles?
(a) Height in pea plant
(b) Hair colour in cattle
(c) Petal colour in four o'clock plant
(d) Wing-size in Drosophila
In a homozygous plant round seeds (R) are dominant over wrinkled seeds (r) : Draw a Punnett square to show the gametes and offspring when both the plants have heterozygous round seeds (Rr).
Differentiate between Mendel’s monohybrid cross and dihybrid cross.
Explain the following term :
Heterozygous
Define the term heredity.
Choose the correct answer:
Mendel used ______ pairs of a characters for his experiments.
Choose the correct answer:
The contrasting characters used by Mendel are called _____
Describe the cross between a homozygous tall, round-seeded pea plant and a dwarf, wrinkled-seeded pea plant. What will be the types of progeny in the F2 generation of this cross and in what proportion will it be?
Name and state the law which is explained by this example.
Give Reason:
Heritable variations are called genetic variations.
Complete the following sentence with appropriate word:
___________ is the Father of Genetics.
Multiple Choice Question
What is the effect of sexual reproduction?
New species may be formed if
- DNA undergoes significant changes in germ cells
- chromosome number changes in the gamete
- there is no change in the genetic material
- mating does not take place
Give the basic features of the mechanism of inheritance.
Test cross is when ______.
Do you think Mendel’s laws of inheritance would have been different if the characters that he chose were located on the same chromosome.
What are the characteristic features of a true-breeding line?
Which one of the following cannot be explained on the basis of Mendel’s Law of Dominance?
