Advertisements
Advertisements
प्रश्न
ZZ/ZW type of sex determination is seen in ______.
विकल्प
Peacock
Cockroach
Platypus
Snails
apple snail
human
Advertisements
उत्तर
ZZ/ZW type of sex determination is seen in peacock.
Explanation:
The ZZ/ZW type of sex determination is seen in birds, many fishes, and reptiles. In this system, the female is heterogametic (ZW), meaning she produces two types of eggs,one with the Z chromosome and one with the W chromosome. The male is homogametic (ZZ), producing only one type of sperm with the Z chromosome.
APPEARS IN
संबंधित प्रश्न
How is the sex of the child determined in human beings?
There are two sets of chromosomes in the zygote.
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
What are the chromosomes XY and XX known as?
Which of the two, sperm or ovum, decides the sex of the child?
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human sperm cell?
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
The human animal which has an XY pair of chromosomes is called :
(a) male
(b) hybrid
(c) female
(d) doomed
Define the following:
Sex chromosomes
Explain the following terms:
Identical twins
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
Complete the following sentence with appropriate word:
___________ chromosomes do not take part in sex determination.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Explain the haplo-diploid method of sex determination in the honey bee.
Differentiate Intersexes from Supersexes.
Brief about female heterogamety.
How many ovum are formed when a diploid cell undergoes meiosis, during oogenesis?
A man with blood group A marries a woman having blood group O. What will be the blood group of the child?
Select the incorrect statement
Which of the following statements is not true with respect to variation?
The number of pair (s) of sex chromosomes in the zygote of humans is
Structures present in a cell which is responsible for determination of the sex of a baby is ______.
The chromosomal constitution of a human female can be written as ______
Which of the following group shows ZW-ZZ type of sex determination?
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
Given below are two statements:
Statement - I: The male Drosophila has a pair of homomorphic sex chromosomes.
Statement - II: The male human being has a pair of heteromorphic sex chromosomes.
In the light of above statements, Choose the most appropriate answer from the options given below:
