Advertisements
Advertisements
Question
Draw a well labelled diagram of L.S. human testis.
Advertisements
Solution 1

Solution 2

APPEARS IN
RELATED QUESTIONS
Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.
What is amniocentesis and why there is a statutory ban on it?
What is the causative organism for the following disease?
Gonorrhoea
Write the full form of the following as it occur in biology :
HIV
Name the contraceptive device used by the human males which acts as a sheath over the male organ and traps the sperms in it.
Describe the surgical methods of birth control for women.
A woman uses pills A as a method of birth control (or preventing pregnancy). The pills A stop the ovaries from releasing ovum into oviducts. Another woman uses pills B as a method of birth control. The pills B kill the sperms and prevent pregnancy.
(a) What do the pills A contain?
(b) What is the common name of pills A?
(c) What do the pills B contain?
(d) What is the common name of pills B?
(e) What is the general name of these methods of birth control?
Name the kind of diseases/disorders that are likely to occur in humans if
(i) mutation in the gene that codes for an enzyme phenyl alanine hydrolase occurs,
(ii) there is an extra copy of chromosome 21,
(iii) the karyotype is XXY.
What are Sexually Transitted Diseases (STD)? List two viral and two bacterial STDs.
Define amniocentesis.
Give the role of amniocentesis.
Give scientific reasons.
Indians should follow family planning for controlling the population.
Why is it necessary to maintain reproductive health? Which precautions one should follow to maintain reproductive health?
The technique which makes use of amniotic fluid for the detection of prenatal disorder is called as ______.
‘Saheli’ a new oral contraceptive developed by ______.
RCH stands for ______.
From the internet, gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions.
- Do larger organisms have more number of chromosomes/cells?
- Can organism with fewer chromosomes reproduce more easily than organisms with more number of chromosomes?
- More the number of chromosomes/cells greater is the DNA content. Justify.
How are general growth and sexual maturation different from each other?
Trace the path of sperm during ejaculation and mention the gland and their functions associated with the male reproductive system.
Comment on the Reproductive and Child Health Care programme of the government to improve the reproductive health of the people.
