Advertisements
Advertisements
Question
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
Solution
(i) The type of sex determination mechanism shown in female XX with male XO is male heterogamety.
Example- Humans
(ii) The type of sex determination mechanism shown in female ZW with male ZZ is female heterogamety.
Example- Birds
APPEARS IN
RELATED QUESTIONS
Explain the mechanism of sex determination in birds.
How is the sex of the child determined in human beings?
Which combination of genes in the zygote will produce children with brown eyes?
What is heterogamety ? Explain the mechanism of sex determinatin in Drosophila.
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
With the help of a chart, explain the method of sex determination in honeybees.
Write the functional activity of the following structure:
Heterosomes
Which of the following decides the sex of the child?
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
