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Question
What is male heterogamety?
Solution
Male heterogamety (XY males) is a type of sex determination in which males produce two different types of gametes. For example, human males produce two kinds of sperms that is sperm with X- chromosome and sperms with Y- chromosome.
RELATED QUESTIONS
Explain how, sex is determined in human babies.
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
The sex of a child is determined by which of the following?
(a) the length of the mother's pregnancy
(b) the length of time between ovulation and copulation
(c) the presence of and X chromosome in an ovum
(d) the presence of a Y chromosome in a sperm
Name any two genetic in humans.
Explain the following terms:
Identical twins
Choose the correct answer :
Human sex chromosomes are __________
In which livings, female decides the sex? Give two examples.
Explain the mechanism of sex determination in humans with a suitable chart.
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
Distinguish between heterogametic and homogametic sex determination systems.
From the following which option correctly represents the normal genetic constitution of a ovum?
Which of the following organisms has haploid number of chromosomes?
Sex is determined in human beings ______.
ZZ / ZW type of sex determination is seen in ______.
The maleness of a child is determined by ______
The maleness of a child is determined by
Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
Which of the following group shows ZW-ZZ type of sex determination?
Which pair of sex chromosome will determine a male?
