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प्रश्न
In which livings, female decides the sex? Give two examples.
उत्तर
Living beings in which females decide the sex of the offspring are, birds and moths and butterflies.
APPEARS IN
संबंधित प्रश्न
If X chromosome is inherited from mother and Y from father, the offspring will be male.
Fill in the following blank with suitable word :
Genes always work in ................ .
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
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
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.
Distinguish between heterogametic and homogametic sex determination systems.
In XO type of sex determination ______.
The maleness of a child is determined by ______
A zygote which has an X-chromosome inherited from the father will develop into a
The two versions of a trait (character) which are brought in by the male and female gametes are situated on
Select the statements that describe characteristics of genes
- genes are specific sequence of bases in a DNA molecule
- a gene does not code for proteins
- in individuals of a given species, a specific gene is located on a particular chromosome
- each chromosome has only one gene
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 ______
Name the two types of gametes produced by men.
Does a male child inherit X chromosome from his father? Justify.
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
