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1101.

Correct sequence of human embryonic development isA. Gastrocoel-Blastocoel-Neural Crest-NotochordB. Gastrocoel-Blastocoel-Notochord-Neural CrestC. Blastocoel-Neural Crest-Gastrocoel-NotochordD. Blastocoel-Gastrocoel-Neural Crest-Notochord

Answer» Correct Answer - D
(D) Correct sequence of human embryonic development is Blastocoel-Gastrocoel-Neural Crest-Notochord.
1102.

Ovum released from ovary and is transported to the fallopian tube for fertilisation . Trace the correct path the egg and embryo takes from ovary to uterus .A. Ovum `to ` Abdominal cavity `to` Ampulla `to ` Isthmus `to ` Infundibutum `to ` UterusB. Ovum `to ` Abdominal cavity `to ` Infundibulum `to` Ampulla `to` Isthmus `to` UterusC. Ovum `to Abdominal cavity` to ` Isthmus `to ` Ampulla `to` Infundibulum `to ` UterusD. Ovum `to ` Abdominal cavity `to` Flmbriae `to` Isthmus`to` Ampulla`to` Uterus

Answer» Correct Answer - B
1103.

A : in morula stage the cells divide without any increase in size R : zona pellucida remains intact till cleavage is completedA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4)

Answer» Correct Answer - B
1104.

Find out the correct sequence in embryonic development of animal:A. cleavage,zygote,fertilization,morula,blastula,gastrulaB. fertilization,zygote,cleavage,morula,blastula,gastrulaC. fertilization,cleavage,morula,zygote,blastula,gastrulaD. fertilization,zygote,blastula,morula,cleavage,gastrula

Answer» Correct Answer - b
1105.

Identify the parts labelled as A to F from the given diagram of human female reproduce system and select the correct option. A. A-Cervix, B-Vagina, C-Uterus, D-Urinary bladder, E-Clitoris, F-Vaginal orificeB. A-Vagina, B-Cervix, C-Urinary bladder, D-Uterus, E-Vaginal orifice, F-ClitorisC. A-Urethra, B-Vagina, C-Urinary bladder, D-Cervix, E-Uterus, F-ClitorisD. A-Vaginal orifice, B-Cervix, C-Uterus, D-Urethra, E-Clitoris, F-Urinary bladder

Answer» Correct Answer - A
1106.

A : Most birds posses only the left ovary and left oviduct for conveying the ovum released from the ovary R : The avian ovary does not form a corpus luteum from the ruptured ovarian follicle which undergoes rapid shrinkage .A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4)

Answer» Correct Answer - B
1107.

The given figure is of human female reproductive system. Identify the parts labelled as A, B, C and D and select the correct option. A. A-Oviduct, B-Uterus, C-Ovarian ligament, D-OvaryB. A-Cervix, B-Uterus, C-Ovary, D-TumourC. A-Uterus, B-Uterine cavity, C-Oviducal funnel, D-OvaryD. A-Cervix, B-Uterine cavity, C-Fallopiantube, D-Ovary

Answer» Correct Answer - D
1108.

A zygote is completely divided into two by a cleavage furrow. The cleavage type isA. radialB. equatorialC. holoblasticD. meroblastic

Answer» Correct Answer - C
1109.

Morula formed at the end of the cleavage is________celled?A. 16B. 14C. 18D. 20

Answer» Correct Answer - a
1110.

Correct sequence in cleavage, zygote,fertilization,gastrula,blastula:A. 3,1,2,5,4B. 3,2,1,4,5C. 3,2,1,5,4D. 1,3,2,4,5

Answer» Correct Answer - c
1111.

Due to presence of large amount of yolk. Zygote divides into two incomplete halv es. This type of cleavage does not occur inA. Peacock, Duck-billed playtpus and crocodile.B. Jungle. Fowl, Dove and DuckC. Formation of three germinal layersD. Formation of archenteron.

Answer» Correct Answer - C
1112.

The `ul((A))` division starts as the zygete oves through the isthmus of the oviduct called `ul((B))`.

Answer» Correct Answer - (A) Mitotic (B) Cleavage
1113.

Fill up the blanks in the following paragraph by selecting the correct option. `overset((i))"____"` are the primary female sex organs that produce `overset((ii))"____"` and `overset((iii))"____"`. Each primary sex organ is about `overset((iv))"____"` in length and is connected to the pelvic wall and uterus by `overset((v))"____"`A. `{:("(i)",(ii),(iii),(iv),(v)),("Testes","spems","hormones","4-5 cm","ligaments"):}`B. `{:("(i)",(ii),(iii),(iv),(v)),("Overies","oogonia","follicles","2-4 cm","muscles"):}`C. `{:("(i)",(ii),(iii),(iv),(v)),("Overies","ovum","hormones","2-4 cm","ligaments"):}`D. `{:("(i)",(ii),(iii),(iv),(v)),("Testes","sperms","testosterone","8-9 cm","muscles"):}`

Answer» Correct Answer - C
1114.

Some important events that take place during fertilisation are given below. Arrange the events in a proper sequence and select the correct option. (i). Cortical reaction (ii). Sperm entry (iii). Karyogamy (iv). Acrosomal reactionA. `(iv)to(i)to(ii)to(iii)`B. `(i)to(ii)to(iii)to(iv)`C. `(iv)to(ii)to(i)to(iii)`D. `(ii)to(i)to(iii)to(iv)`

Answer» Correct Answer - A
1115.

Following fertilisation cleavage begins while the zygote is in :A. An ovaryB. The placentaC. The uterusD. The fallopian tube

Answer» Correct Answer - D
1116.

The early stage human embryo distinctly possessesA. gillsB. gill siltsC. external ear (pinna)D. eyebrows

Answer» Correct Answer - B
Early human embryo possesses a dorsal hollow nerve cord, a well developed notochord and a series of gill slits, which represent th e fundamental chordate characters.
1117.

Match column I with column II and select the correct option from the codes given below. `{:("Column I","Column II"),(A." Cleavage",(i)." Fertilisation"),(B." Morula",(ii)." Mitotic divisions"),(C." Polyspermy",(iii)." Endometrial"),(D." Implantation",(iv)." Little mulberry"):}`A. A-(ii),B-(iv),C-(i),D-(iii)B. A-(i),B-(iv),C-(ii),D-(iii)C. A-(iv),B-(ii),C-(i),D-(iii)D. A-(ii),B-(iv),C-(iii),D-(i)

Answer» Correct Answer - A
1118.

Match column I with column II and select the correct option from the codes given below. `{:("Column I","Column II"),("Fertilisation",(i)"Isthmus of oviduct"),("Cleavage",(ii)"Later part of oviduct"),("Morula",(iii)"Cervix"),("Blastocyst",(iv)"Ampulla of oviduct"),("Parturition",(v)"Uterine wall"):}`A. iv,I,ii,iii,vB. ii,I,iv,iii,vC. ii,I,v,iv,iiiD. iv,I,ii,v,iii

Answer» Correct Answer - D
1119.

In human adult females oxytocinA. Causes strong uterine contractions during parturationB. Is secreted by anterior pituitaryC. Stimulates growth of mammary glandsD. Stimulates pituitary to secrete vasopressin

Answer» Correct Answer - A
1120.

In human adult females, oxytocinA. causes strong uterine contractions during parturitionB. is secreted by anterior pituitaryC. stimulates growth of mammary gandsD. stimulates pituitary to secrete vasopressin

Answer» Correct Answer - A
1121.

In mammals, the archenteron/ primitive gut is lined withA. EctodermB. MesodermC. EndodermD. Mesoderm and endoderm

Answer» Correct Answer - C
(C ) In mammals, the archenteron/primitive gut is lined with endoderm.
1122.

The phase of menstrual cycle in humans that lasts for 7-8 days, isA. Follicular phaseB. Ovulatory phaseC. Luteal phaseD. Menstruation

Answer» Correct Answer - A
1123.

Both corpus lutea and macula lutea areA. Found in human ovariesB. Source of hormonesC. Characterised by yellow colourD. Contributory in maintaining pregnancy

Answer» Correct Answer - C
(C ) Both corpus lutea and macula lutea are characterised by yellow colour.
1124.

Both corpus lutea and macula lutea areA. found in human ovariesB. a source of hormonesC. characterized by a yellow colourD. Contributory I maintaining pregnancy

Answer» Correct Answer - C
1125.

given below are four statements (i)-(iv) reagarding embryonic development in humans. (i). Cleavage divisions about considerable increase I the mass of protoplasm (ii). With more cleavage divisions, the resultant blatomeres become smaller and smaller. (iii). the blastomeres in the blastocyst are arranged into two layers, trophoblast and endometrium. (iv). Cleavage divisions result in a solid ball of cells called morula. Which of the above two statemetns are correct?A. (i) and (iii)B. (ii) and (iv)C. (i) and (ii)D. (iii) and (iv)

Answer» Correct Answer - B
Interphase in cleavage division is short and does not involve growth so that the resulting blastomeres become smaller in size as their number increase. During cleavage, at smaller in size as their number increases. During cleavage, at 8-16 celled stage. a solid ball of cells called morula (As it look like mulberry) is formed. In cleavage. there is increased mobility of protoplasm. The blastomeres in the blastocyst get arranged into outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.
1126.

In males , the essential hormone for secondary sexual characteristics is Or The hormone which brings about characteristics changes in the male at puberty is calledA. relaxinB. estrogenC. testosteroneD. progesterone

Answer» Correct Answer - c
1127.

Two offspring developed in the same uterus from fertilisation of two different ova areA. Monozygotic twinsB. Dizygotic twinsC. Fraternal twinsD. Both B and C

Answer» Correct Answer - D
(D) Two offspings developed in the same uterus from fertilisation of two different ova are dizygotic twins and fraternal twins.
1128.

Two offsprings developed in the same uterus from f ertilisation of two different ova areA. Monozygotic twinsB. Dizygotic twinsC. Fraternal twinsD. Both (2) & (3)

Answer» Correct Answer - D
1129.

Correct sequence in development isA. Fertilization `to` Zygote`to` Cleavage `to`Morula `to` Blastula`to` GastrulaB. Fertilization `to` Zygote `to` Blastula `to` Morula`to` Cleavage `to` GastrulaC. Fertilization `to` Cleavage `to`Morula `to` Zygote`to` Blastula`to` GastrulaD. Cleavage `to` Zygote `to` Fertilization`to` Morula `to` Blastula `to` Gastrula

Answer» Correct Answer - A
(A) Correct sequence in development is Fertilization `to` Zygote `to` Cleavage `to` Morula `to` Blastula `to` Gastrula.
1130.

Eye develops fromA. EctodermB. MesodermC. EndodermD. Both A and B

Answer» Correct Answer - D
(D) Eye develops from ectoderm and mesoderm.
1131.

Haemoendothelial placents occurs inA. Man and ApeB. Cow and GoatC. Deer and CamelD. Rat and Rabbit

Answer» Correct Answer - D
1132.

Noncleiodic eggs occur in :A. BirdsB. FishC. ReptilesD. Platypus.

Answer» Correct Answer - B
1133.

Noncleiodic eggs occur in :A. BirdsB. FishC. ReptilesD. Platypus

Answer» Correct Answer - B
(B) Non-cleidoic eggs occurs in fish.
1134.

The mammary glands of the female undergo differentiation during pregnancy and starts producing milk towards the end of pregnancy by the process calledA. ParturitionB. GestationC. LactationD. Colostrum

Answer» Correct Answer - C
(C ) The mammary glands of the female undergo differentiation during pregnancy and starts producing milk towards the end of pregnancy by the process called lactation.
1135.

Several mammary ducts join to form a wider `ul((A))` which is connected to `ul((B))` through which milk is sucked out.

Answer» Correct Answer - (A) mammary ampulla (B) lactiferous duct
1136.

Assertion: In breast, several mammary ducts join to form a wider mammary ampulla. Reason: Mammary ampulla in connected to lactiferous duct through which milk is sucked out.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - B
(B)
A Functional mammary gland is characteristic of all female mammals.
The mammary glands are paired structures (breasts) that contain glandular tissue and variable amount of fat.
The glandular tissue of each breast is divided into 15-20 mammary lobes containing cluster of cells called alveoli.
the cells of alveoli open into mammary tubules. The tubules of each lobe join ot form a mammary cucts join to form a wider mammary ampulla which is connected to lactiferous ducts through which milk is sucked out.
1137.

Identify the correct match from the columns I,II and III. A. 2-A-iii,1-C-iv,3-B-I,4-D-iB. 1-C-iv,2-D-iii,3-B-i,4-A,iiC. 1-D-iii,2-A-iv,3-B-i,4-C-iiD. 2-D-iii,1-C-iv,3-A-ii,4-B-iv

Answer» Correct Answer - b
1138.

Match the columns and find the correct combination A. a-2,b-1c-4,d-3,e-5B. a-4b-c-2,d-5,e-3C. a-2,b-1,c-5,d-4,e-3D. a-4,b-1,c-2,d-3,e-5

Answer» Correct Answer - B
1139.

In breast, the mammary alveloi open into theA. Mammary ductB. Mammary tubuleC. Mammary ampullaD. Lactiferous duct

Answer» Correct Answer - B
(B) In breast, the mammary alveili open into the mamary tubule.
1140.

The tubules of each lobe join to form aA. Mammary ductB. Mammary tubuleC. Mammary ampullaD. Lactiferous duct

Answer» Correct Answer - A
(A) The tubules of each lobe of mammary gland join to form a mammary duct.
1141.

Which of the following is immortal?A. Somatic cellB. Germ cellC. Glomerular cellD. Cells of pituitary.

Answer» Correct Answer - B
1142.

Which of the following is immortal?A. Somatic cellB. Germ cellC. Glomerular cellD. Cell of pituitary

Answer» Correct Answer - B
(B) Germ cell is immortal.
1143.

Which of the following are immortal?A. Brain cellsB. Germ cellsC. Pitutary cellsD. all of these

Answer» Correct Answer - b
1144.

Monoestrous animals have one:A. eggB. menses each monthC. ovulation each monthD. breeding season in a year

Answer» Correct Answer - d
1145.

Monoestrous animals haveA. One ovulation each monthB. One heat period each monthC. One breeding season in a yearD. One menstrual cycle each month

Answer» Correct Answer - C
1146.

Spermatogenesis and sperm differentiation are under the control ofA. FSHB. LHC. TestosteroneD. Parathyroid hormone.

Answer» Correct Answer - A
1147.

Seminiferous tubuleous occur in :A. LiverB. kidneyC. OvaryD. Testis.

Answer» Correct Answer - D
1148.

Endometrium is lining ofA. TestisB. Urinary bladderC. uterusD. Ureter.

Answer» Correct Answer - C
1149.

Corpora cavernosa are found in:A. testisB. ovaryC. penisD. uterus

Answer» Correct Answer - c
1150.

Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to maintain pregnancy.A. AB. BC. CD. D

Answer» Correct Answer - C