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प्रश्न
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
विकल्प
It occurs in birds and some reptiles
Females are homogametic and males are heterogametic
Male produce two types of gametes
It occurs in gypsy moth
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उत्तर
Females are homogametic and males are heterogametic
संबंधित प्रश्न
How is the sex of the child determined in human beings?
The two versions of a trait (character) which are brought in by the male and female gametes are situated on :
(a) copies of the same chromosome
(b) sex chromosomes
(c) two different chromosomes
(d) any chromosomes
Name any two genetic in humans.
Read the following statements and select the correct option.
i. If sperm containing Y chromosome fertilizes the ovum, then diploid zygote is formed that grows into a male child.
ii. If sperm containing X chromosome fertilizes ovum, then diploid zygote is formed, that grows into a female child.
Which of the following organisms has haploid number of chromosomes?
Which of the following determines the sex of a child?
In humans, males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
What is the probability of a girl or a boy being born into a family? Justify your answer.
In 1891, H. Henking studied spermatogenesis in squash bugs and observed that a specific nuclear structure was present in what percentage of the resulting sperms?
In a bird population using the ZW–ZZ sex determination system, if a ZZ male mates with a ZW female, what proportion of offspring would be expected to be female?
