Advertisements
Advertisements
Question
Explain the Term Mutation.
Solution
Mutation: Any change brought about into the genetic composition through external or internal factors.
APPEARS IN
RELATED QUESTIONS
The phenotypic ratio of incomplete dominance is ______.
What is crossing-over? What are the factors affecting it?
State Mendel’s Law of Dominance.
A pure tall plant (TT) is crossed with a pure dwarf plant (tt).
Draw Punnet squares to show
(1) F2 generation
(2) F2 generation.
Explain the term Alleles.
Give Technical Term:
Cell organelle directly involved in genetics.
Give Technical Term:
The individuals having dissimilar pairs of genes.
Complete the following sentence with appropriate word:
The physical expression of genes is called _________.
Write the functional activity of the following structure:
Genes
Multiple choice question.
Phenotypic ratio of incomplete dominance in Mirabilis jalapa.
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
Explain a dihybrid cross with suitable example and checker board method.
A recessive factor is altered by the presence of a dominant factor.
Hybrid is an offspring from a cross between genetically different parents.
Identify the genotype of peacock.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
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 |
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
Name any two genetic diseases in humans.
