Advertisements
Advertisements
प्रश्न
Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between.
red flower variety of pea (RR) with white flower variety of pea (rr)
उत्तर
F2 generation?
| Gametes | R | r |
| R | RR | Rr |
| r | Rr | rr |
Genotype - 1(Homozygous red) :2 (Heterozygous red):1 (Homozygous white)
Phenotype - 3 (Red) :1(White)
APPEARS IN
संबंधित प्रश्न
Give scientific reasons : Colour blindness is more common in men than in women.
Match the terms in column I with their explanations in column II.
| Column I (Term) | Column I (Explanation) | ||
| a | genetics | 1 | Chromosomes similar in size and shape |
| b | Autosomes | 2 | The alternative forms of a gene |
| c | Recessive gene | 3 | Study of laws of inheritance of characters |
| d | Allele | 4 | A gene that can express only when in a similar pair |
| e | Homologous chromosomes | 5 | Chromosomes other than the pair of sex chromosomes |
Correct and rewrite the statements by changing the biological term that is underlined for the statement:
The theory of Inheritance of Acquired Characters was proposed by Watson and Crick.
Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Example : glucose, starch, cellulose, calcium
Odd term : calcium
Category : others are different types of carbohydrates
Chicken pox, Colour blindness, Haemophilia, Albinism
A woman has normal vision but her father was colour blind. If she is married to a colour blind person, report on the occurrence of the disease in the progeny.
A woman with normal vision marries a man with normal vision. They have a colourblind son. Her husband dies and she marries a colourblind man. Show the type of children that might be expected from this marriage and the proportion of each.
A haemophilic man marries a carrier women. Find out the probability of their offsprings being haemophilic.
Explain the inheritance of sex-linked characters in human being.
Both male and female have normal vision though their fathers were colour blind mothers did not have any gene for colour blindness. The probability of their daughter becoming colour blind is ______.
