Advertisements
Advertisements
प्रश्न
What is parthenogenesis?
Advertisements
उत्तर
The process by which a female produces offspring from unfertilized eggs is known as parthenogenesis.
APPEARS IN
संबंधित प्रश्न
Write the types of sex-determination mechanisms the following crosses show. Give an example of each type.
(i) Female XX with Male XO
(ii) Female ZW with Male ZZ
There are two sets of chromosomes in the zygote.
A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell (sperm or ovum) of a human being is most likely to be :
(a) 46
(b) 23
(c) 21
(d) 42
Name two animals which have nineteen pairs of chromosomes.
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
What is male heterogamety?
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are ______.
- large chromosome
- small chromosome
- Y-chromosome
- X-chromosome
The maleness of a child is determined by ______
Which of the following group shows ZW-ZZ type of sex determination?
Which biological mechanism establishes whether an individual develops as male or female based on genetic or chromosomal factors?
