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Quiz 23
Mdcat-past-papers - UHS - Biology Quiz
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Board: UHS | Subject: Biology |
441. The term menopause means:
Start of menstruation
start of ovulation
stop of ova production
degneration of ovary
442. The labour pain to expel fetus are due to action of oxytocin on:
Endometrium
Myometrium
perimetrium
ovaries
443. In human females, what is the small,pear shaped, muscular, distensible, sac-like organ where gestation takes place?
Uterus
stomach
Kidney
Fallopian tube
444. The function of hyaluronidase enzyme is:
Penetration of sperm into the ovum
entrance of sperm into the Fallopian tube
Inactivation of sperm after their failure to fertilize ovum
None of these
445. Female reproductive system consists of all the following EXCEPT
Ovaries
Oviduct
Cervix
Seminiferous tubules
446. Which one of the following hormone is responsible for the labor pains in human females at the time of baby?
Estrogen
Progesterone
Oxytocin
Corticosteroid
447. Corpus luteum during frmale reproductive cyccle produces
Testosterone
FSH
LH
Progesteron
448. Due to the process of follicle atresia:
Follicles reach maximum size
Follicle degenerates
Graafian follicle ovulates
follicle starts to mature
449. Syphilis is a sexually transmitted disease which is caused By:
HIV/AIDS
Pseudomonas
Treponema Pallidum
Neisseria
450. Causative agent of a sexually transmitted disease that affects mucus membrane of urinogenital tract is:
Staphylococcus aures
Neisseria gonorrhea
Treponema Pallidum
Escherichia coli
451. Transmission of Neisseria gonorrhoea is best described by which one of the following?
Oro-fecal route
unsafe sex
Vector borne
Droplet infection
452. AIDS is caused by:
Bacteria
Virus
fungi
Alga
453. Syphilis is caused by:
Spirochete
Nostoc
Water blooms
Cyano bacteria
454. Major source of transmission of syphilis is:
Blood transfusion
Insect bite
contaminated water
sexual contact
455. In males, the sex-determining gene is:
XY
SRY
SYX
SXX
456. Self-fertilization of F1 dihybrids, following independent assortment of alleles, results in:
3/16 Tall-round : 3/16 dwarf-wrinkled
9/16 tall wrinkled : 3/16 dwarf-round
9/16 tall round : 3/16 dwarf-wrinkled
3/16 tall wrinkled : 3/16 dwarf-round
457. As a result of cross-fertilization of a true-breeding pea plant having purple-colored flowers with that of white-colored flowers, the offspring will have flowers with:
1/4 purple : 3/4 white
All white
1/4 white : 3/4 purple
All purple
458. A person was married to his cousin, and both are heterozygous for sickle cell anemia. Among their four kids, what will be the proportion of affected homozygotes?
50%
25%
75%
100%
459. Test cross is made to check the genotype of a trait. Which of the following crosses is a test cross?
Unknown x At
Unknown x tt
Unknown x AB
Unknown x TT
460. DNA stores biological information in discrete units termed as:
Genes
Phenotypes
Karyotypes
Cells
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