Advertisements
Advertisements
प्रश्न
________ shows haplo-diploid type of sex-determination.
विकल्प
Pigeon
Honey bee
Parrot
Snake
Advertisements
उत्तर
Honey bee
APPEARS IN
संबंधित प्रश्न
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human sperm cell?
Give Technical Term:
The cell which determines the sex of a baby.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Kavitha gave birth to a female baby. Her family members say that she can give birth to only female babies because of her family history. Is the statement given by her family members true? Justify your answer.
In XO type of sex determination ______.
Which of the following combination of chromosome numbers represents the correct sex determination pattern in honey bees?
A zygote which has an X-chromosome inherited from the father will develop into a
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
The belief that the mother is completely responsible for the sex of the child is wrong because the child
All human chromosomes ate not paired. Most human chromosomes have a maternal and a paternal copy, and we have 22 such pairs. But one pair called the sex chromosomes, is odd in not always being a perfect pair. Women have a perfect pair of sex chromosomes. But men have a mismatched pair in which one is normal sized while the other is a short one.
(a) In humans, how many chromosomes are present in a Zygote and in each gamete?
(b) A few reptiles rely entirely on environmental cues for sex determination. Comment.
(c) "The sex of a child is a matter of chance and none of the parents are considered to be responsible for it." Justify it through flow chart only.
OR
(c) Why do all the gametes formed in human females have an X chromosome?
