Question 6 :
Onset of menstrual cycle in female anthropoid primates is known as
Question 9 :
Which of the following changes is not observed in girls at the time of puberty?
Question 10 :
In which of the following plant, the fruit is a drupe, seed coat is thin, embryo is inconspicuous and endosperm is edible?<br/>
Question 12 :
The process of formation of one or more outgrowths from an individual is known as?
Question 20 :
During adolescence, several changes occur in the human body. Find out the change which is associated with sexual maturation in boys.<br/>
Question 23 :
Select the mismatched pair of organism and its mode of multiplication.
Question 29 :
The production of offsprings by sexual or asexual process is called as
Question 31 :
The human body undergoes several changes during adolescence. These changes mark the onset of<br/>
Question 33 :
The only haploid stage in an animal life cycle is the
Question 34 :
As opposed to primary sexual characteristics, changes in secondary sexual characteristics are mostly evident in changes in<br>
Question 35 :
Level of follicle stimulating hormone (FSH) during infancy and adulthood is the same but spermatogenesis is seen only during adulthood. mRNA levels coding for FSH receptors are also found to be same in testis of both age groups. Which of the following investigations will clarify this paradox a little more?<br>
Question 40 :
In human beings, which part shows the maximum increase in weight from birth to adulthood ?<br>
Question 41 :
Which among the following is not the function of testes at puberty<br/>(i) Formation of germ cells<br/>(ii) Secretion of testosterone<br/>(iii) Development of placenta<br/>(iv) Secretion of Oestrogen<br/><br/>
Question 43 :
Select out the incorrect statement(s).<br/>A. The zygote undergoes a series of meiotic divisions called cleavage.<br/>B. The zygote is implanted in blastocyst stage on to the uterine wall.<br/>C. The rhythmic contractions of muscles in the uterus occur in the presence of progesterone.<br/>D. The stoppage of menstruation is called menopause.
Question 44 :
In human females, an event that reflects onset of reproductive phase is <br/>
Question 47 :
Spot the odd one out from the following structures with reference to the male reproductive system.<br>
Question 50 :
In the mechanism of action of a protein hormone, one of the second messengers is?
Question 51 :
The active spermatozoa after contacting the oocyte undergoes acrosomal reaction and release
Question 54 :
Which one of the following is the incorrect matching of the events occuring during menstrual cycle?
Question 57 :
State whether the following statements are true or false .<br>Highlevels of progesterone result in a diminution of the trophic hormone LH. Thisis called negative feedback.
Question 58 :
Young boys at puberty start growing facial hairs. This is an example of
Question 60 :
Which of the following would be the correct path of a sperm on its way to fertilize an egg?<br/>(i) Urethra<br/>(ii) Epididymis<br/>(iii) Vagina<br/>(iv) Oviduct<br/>(v) Vas deferens
Question 61 :
Hot water of Manikaran is used for generating electricity. It is known as <br/>
Question 63 :
An important protective function of forest is reduction of atmospheric pollution.
Question 66 :
Check dams are build along seasonal flooded gullies for water harvesting.
Question 83 :
The collection of rainwater in the storage tank for reuse can be termed as
Question 86 :
Which one produce gas by decomposing the gobar in gobar gas?
Question 88 :
For biogas production besides dung, which one of the following weed is recommended in our country?<br/>
Question 89 :
In which of the following land forms will you be able to harness maximum amount of wind energy?
Question 90 :
One day the contractor's workers appeared in the forest to cut the trees but the men folk were absent. However, the women from the village reached the forest quickly and elapsed the tree trunks preventing the workers from felling the trees. Thus, the forest trees were saved.<br>The incident was originated in a remote village called "Reni" in Garhwal in the early $1970$s. By which name is this andolan known as?
