Which of the following food items should not be included in the diet of adolescents?
Dal and roti
Rice and pulses
Fruits and vegetables
Chips and coke
The given figure shows a male reproductive system.
The label X in the figure is ................. it deposits .................... into the vagina?
The information in which row completes the given statements?
Penis, Ova
Penis, Sperm
Testes, Ova
Testes, Sperm
Which of the following is correct about identical twins?
They are developed from the joining of sperms with two separate egg cells.
Their features are identical to their parents.
They have identical thumbprints.
The nuclei of their cells contain identical genes.
Which of the following is an oviparous animal?
Blue whale.
Cat.
Rabbit.
Crow.
Select the incorrect statement regarding AIDS.
It is an immunodeficiency disease.
HIV virus has RNA as its genetic material.
AIDS can be transmitted to an infant from the infected mother in the course of pregnancy.
The time-lag between the infection and appearance of AIDS symptoms may vary from a week to a m
Which of the following is incorrect about Dolly, the clone?
It was cloned by lan Wilmut and his colleagues.
During the process of its cloning, the cell was collected from the udder of a female Finnish Dorset Sheep.
It had a natural death.
It was given birth by a Scottish black face ewe.
Which of these are changes which occur during puberty in a boy?
I. Voice breaks
II. Hips become wider
III. Shoulders become wider
IV. Menstruations starts
I and II only
I and III only
II and III only
III and IV only
The branch of biology dealing with ageing is called
Gerontology
Psycho biology
Kalology
Geriatrics
Which of the following statements about sexual reproduction in Hydra is correct?
The new individual is formed by splitting of parent body into two halves
The fragments formed by the parent's body give rise to new individual
The spores formed on parent's body give rise to the new individual
The new individual develops as a bud on the body of parent
What is the purpose of amniocentesis?
Diagnose heart for diseases.
Know about diseases of brain.
Diagnose embryo for hereditary diseases.
Diagnose blood for abnormalities.
