Home
Class 12
BIOLOGY
(a) In humans, males are heterogametic a...

(a) In humans, males are heterogametic and frmales are homogametic, Explain. Are there any examples where males are homogametic and females heterogametic?
(b) Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.

Text Solution

AI Generated Solution

### Step-by-Step Solution: **(a) Explanation of Heterogametic Males and Homogametic Females in Humans:** 1. **Definition of Heterogametic and Homogametic:** - Heterogametic refers to organisms that produce two different types of gametes (sex cells). - Homogametic refers to organisms that produce one type of gamete. ...
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLE OF INHERITANCE AND VARIATIONS

    NCERT EXEMPLAR ENGLISH|Exercise SHORT TYPE QUESTIONS|15 Videos

  • ORGANISMS AND POPULATIONS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|12 Videos

  • REPRODUCTION IN ORGANISMS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|5 Videos

Similar Questions

Explore conceptually related problems

Assertion : In pigeons, females are heterogametic and males and homogametic Reason : In pigeons, females have ZW sex chromosomes and males have ZZ sex chromosomes.

Male heterogametic ,XX-XO type of sex determination is found in

XO type of sex determination and XY type of sex determination are the examples of: a. male heterogamety b. female heterogamety c. male homogamety d. both (b) and (c)

Assertion : Females not participate in the determination of the sex of baby . Reason : Human male is heterogametic .

Explain the mechanism of sex-determination in humans. b) Differentiate between male heterogamety and female heterogamety with the help of an example of each.

a) Explain the mechanism of sex-determination in humans. b) Differentiate between male heterogamety and female heterogamety with the help of an example of each.

Given below are some organisms. I. Fowl II. Humans III. Grasshopper Following alphabets related to the above animals. Male homogametic-A Female heterogametic-B Male heterogametic -C Female homogametic -D Which of the following option correctly describes the above animals in terms of sex determination?

Assertion: In each pregnancy there is always 50 per cent probability of either a male or a female child. Reason: The genetic makeup of the sperm determines the sex of child.

Find out the incorrect match. (1) A- Homogametic. , (2) B-Female chick. (3) A-sex determiner , (4) B-Heterogametic

Assertion: In humans, the gamete contributed by male determines whether the child produced will be male or female. Reason: Sex in humans is polygenic trait depending upon a cumulative effect of some genes on X-chromosome and some on Y-chromosome. a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion. b) If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. c) If Assertion is true but the Reason is false. d) If both Assertion and Reason are false.