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Emergency contraception involves administering any of the following within 72 hours of unprotected sexual activity except:
IUDs: I. Increase phagocytosis of sperms II. Release Cu ions that suppress sperm motility and fertilising capacity of sperms III. Make the uterus unsuitable for implantation IV. Make the cervix hostile to sperms V. Prevent semen from entering the female reproductive tract. Which of the above statements are true?
Name the enzyme that facilitates opening of DNA helix during transcription.
Nirodh is a popular brand of:
Oral contraceptive pills are composed of:
What is false for ZIFT?
Choose the correct option regarding the full forms: I. RTI - Reproductive Tract Infections II. VD - Venereal Diseases III. STD - Sexually Transmitted Diseases IV. IVF - Intra Vaginal Transfer
Match the following sexually transmitted diseases (Column - I) with their causative agent (Column - II) and select the correct option. Column I A. Gonorrhoea B. Syphilis C. Genital Warts D. AIDS Column II i. HIV ii. Neisseria iii. Treponema iv. Human Papilloma Virus
Which of the following approaches does not give the defined action of contraceptive?
In 'test-tube baby' procedure:
What ratio is expected in offsprings if father is colour blind and mother's father was colour blind:
Match the following columns and select the correct option. Column-I (a) Placenta (b) Zona pellucida (c) Bulbo-urethral glands (d) Leydig cells Column-II (i) Androgens (ii) Human Chorionic Gonadotropin (hCG) (iii) Layer of the ovum (iv) Lubrication of the Penis
Match List-I with List-II: List-I A. Two or more alternative forms of a gene B. Cross of F1 progeny with homozygous recessive parent C. Cross of F1 progeny with any of the parents D. Number of chromosome sets in plant List-II I. Back Cross II. Ploidy III. Allele IV. Test cross
Sickle cell anaemia is due to:
Experimental verification of the chromosomal theory of inheritance was done by:
If the distance between two consecutive base pairs is $0.34$ nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately
Among fraternal twins, one baby is haemophilic while the baby's brother is normal. Which statement is true?
The phenomenon where a single gene exhibits multiple phenotypic expressions is called:
Which of the following occurs due to the presence of autosome linked dominant trait?
Which of the following statement is correct regarding the process replication in E. coli?