Advertisements
Advertisements
Question
In humans, if gene B gives brown eyes and gene b gives blue eyes. What will be the colour of eyes of the persons having the following combination of genes?
(a) Bb
(b) bb
(c) BB
Solution
(a) Combination Bb will give brown eyes.
(b) Combination bb will give blue eyes.
(c) Combination BB will give brown eyes.
APPEARS IN
RELATED QUESTIONS
How did Mendel interpret his results to show that traits may be dominant or recessive? Describe briefly.
A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits – blood group A or O – is dominant? Why or why not?
A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result in F1 progeny?
What type of plants were used by Mendel for conducting his experiments on inheritance?
Name the scientist who gave the laws of inheritance.
Give the contrasting traits of the following characters in pea plant and mention which is dominant and which is recessive:
Yellow seed
The following results were obtained by a scientist who crossed the F1 generation of pure-breeding parents for round and wrinkled seeds.
Dominant trait | Recessive trait | No. of F2 offspring |
Round seeds | Wrinkled seeds | 7524 |
From these results, it can be concluded that the actual number of round seeds he obtained was ______
Pure-bred round-yellow pea seeds have genotype RRYY and the pure-bred wrinkled-green pea seeds have genotype rryy. Keeping this in mind, write the phenotypes of the following genotypes of hybrid pea seeds :
(a) Rryy
(b) rrYy
(c) rrYY
(d) RrYy
(e) RRyy
Define Heredity. Give two examples.
Which of the following statement is incorrect?