
BIOLOGY XII ISC
Quiz by Janiya Malhotra
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Mature Graafian follicle is generally present in the ovary of a healthy human female around :
Following statements are given regarding MTP. Choose the incorrect options given below:
The correct sequence of reproductive events in humans is:
The process when some species migrate from the original to a new place, which in turn changes the allele frequency is called
Introduction of sex education in schools was to:
The seminal plasma is rich in:
Which of the following statements is incorrect about menstruation?
What are the names of the two scientists that replicated the creation of amino acids during the early stages of planet Earth?
The function of Oxytocin is to help in
The outermost layer of blastocyst is called……..
Identify the incorrect statement from the following:
Assertion: Spermatogenesis starts at the age of puberty.
Reason:There is significance increasement of gonadotropin releasing hormones at puberty.
Assertion: Women are at the peak of conception on the 14th day of the menstrual cycle.
Reason: Vasectomy is the method normally, employed to avoid conception in females.
Assertion: CDRI Lucknow has developed Mala-D which is non steroidal,once a week pill
Reason: Hormonal contraceptives help to balance the Hormonallevel in body for proper functioning of gonads.
Assertion: ICSI technique can be used to develop embryo invitro.
Reason: This process can be performed only after the ovum is taken out of the ovary
Assertion: Lactational amenorrhoea is a temporary contraceptive method
Reason: Ovulation does not occur during the period of intense lactation
Match the terms column I with their functions in column II and select the correct option.
Column I Column II
A. Lactation 1 . Layer of follicle cells
B. Blastocyst 2. Release of mature spermatozoa
C. Parturition 3. Mammalian embryo
D. Corona radiata 4. Process of giving birth
E. Spermiation 5. Secretion of milk
In the case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilization?
Intensely lactating mothers do not generally conceive due to the :
Select the feature of human female.
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:
A population is in Hardy-Weinberg equilibrium for a gene with only twoalleles. If the gene frequency of an allele A is 0.7, and the gene frequency ofallele a is 0.3 then the genotype frequency of Aa is:
The bones of forelimbs of whale, bat, cheetah, and man are similar in structure,because .................... .
Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as:
Hominids originated during—
Appearance of antibiotic-resistant bacteria is an example of:
The given figure shows an example of:

Wings of insect and birds are examples of:
Penetration of the sperm in the ovum is followed by
The correct sequence of hormone secretion from beginning of menstruation is
Which of the following statements are correct with respect to hormones secreted by placenta?
(i) Placenta secretes relaxin during later stage of pregnancy.
(ii) Placenta secretes high amount of FSH during pregnancy.
(iii) Placenta secretes relaxin during initial stage of pregnancy.
(iv) Placenta secretes hCG and hPL during pregnancy.
During parturition, a pregnant woman is having prolonged labour pains and child birth has to be fastened. It is advisable to administer a hormone that can
Concentration of which of the following substances will decrease in the maternal blood as it flows from embryo to placenta through the umbilical cord?
i. Oxygen
ii. Amino Acids
iii. Carbon dioxide
iv. Urea
Look at the given picture and answer the following questions:
(i) The diversity within the wild bird species in the diagram below can be best explained by which process?

(ii) Darwin claimed that the difference in beak formation between the variety of the species found in the Galapagos Island was related to their:

(iii) The finches of Galapagos islands provide an evidence in favour of:

(iv) The study of Galapagos finches show:

How many species of the finches did Darwin see:

The tendency of population to remain in genetic equilibrium may be disturbed by:
Pap smear test is performed to detect the