MCQOPTIONS
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MCQOPTIONS
This section includes 200 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Internal fertilization is advantageous because it protects the fertilized egg from |
| A. | dehydration |
| B. | predation |
| C. | harsh environment |
| D. | all of the above |
| Answer» E. | |
| 152. |
The human embryo is referred to as the foetus from the beginning of |
| A. | 1st month of pregnancy |
| B. | 2nd month of pregnancy |
| C. | 3rd month of pregnancy |
| D. | 4th month of pregnancy |
| Answer» D. 4th month of pregnancy | |
| 153. |
Parthenocarpy is sometime artificially induced for commercial purposes in |
| A. | potato |
| B. | cabbage |
| C. | tomato |
| D. | garlic |
| Answer» D. garlic | |
| 154. |
The plant which flower without being influenced by photoperiod is a |
| A. | long day plants |
| B. | short day plants |
| C. | day neutral plant |
| D. | noble plants |
| Answer» D. noble plants | |
| 155. |
The end or complete stop of menstrual cycle is called |
| A. | menuend |
| B. | infertilization |
| C. | menupause |
| D. | ovulation |
| Answer» D. ovulation | |
| 156. |
The function of oxytocin hormone is to induce |
| A. | secretion of sweat |
| B. | labour pain |
| C. | pupil dilation |
| D. | high blood pressure |
| Answer» C. pupil dilation | |
| 157. |
Testosterone is secreted by cells between the seminiferous tubules called |
| A. | interstitial cells |
| B. | spermatids |
| C. | polar cells |
| D. | epithelium cells |
| Answer» B. spermatids | |
| 158. |
The phenomenon of releasing ovum from ovary is called |
| A. | ejaculation |
| B. | ejection |
| C. | oocytation |
| D. | ovulation |
| Answer» E. | |
| 159. |
Labour pain is caused by contractions in the walls of |
| A. | uterus |
| B. | cervix |
| C. | ovary |
| D. | endometrium |
| Answer» B. cervix | |
| 160. |
Only one of the follicle continues to grow while all other follicles break down by a process called |
| A. | follicle suicide |
| B. | follicle death |
| C. | follicle atresia |
| D. | follicle degeneration |
| Answer» D. follicle degeneration | |
| 161. |
Reproduction is mainly divided into |
| A. | two types |
| B. | three types |
| C. | four types |
| D. | five types |
| Answer» B. three types | |
| 162. |
Tobacco requires the length of dark period that is |
| A. | 8.5 h |
| B. | 7.5 h |
| C. | 6.5 h |
| D. | 5.5 h |
| Answer» B. 7.5 h | |
| 163. |
Seed plants are predominantly seen all around us due to good characteristics like |
| A. | modification of flower |
| B. | infloresence for pollination |
| C. | gamete transfer by pollen tubes |
| D. | all of the above |
| Answer» E. | |
| 164. |
Mature sperms are formed by differentiation in |
| A. | spermatogonia |
| B. | spermatids |
| C. | primary spermatocytes |
| D. | secondary spermatocytes |
| Answer» C. primary spermatocytes | |
| 165. |
Phytochromes exists in |
| A. | one form |
| B. | two forms |
| C. | three forms |
| D. | four forms |
| Answer» C. three forms | |
| 166. |
The sperm is carried out of the testes and towards the prostate and urethra by |
| A. | epididymis |
| B. | seminal vesicle |
| C. | vas deferens |
| D. | glans penis |
| Answer» D. glans penis | |
| 167. |
The key feature of identical twins is that |
| A. | they are genetically different |
| B. | they are genetically identical |
| C. | they are produced sexually |
| D. | they are produced from two different eggs |
| Answer» C. they are produced sexually | |
| 168. |
Average loss of blood during child birth is |
| A. | 100 cm? |
| B. | 350 cm? |
| C. | 250 cm? |
| D. | 150 cm? |
| Answer» C. 250 cm? | |
| 169. |
The follicle cells after the release of egg are modified to form a special structure called |
| A. | cell debris |
| B. | corpus luteum |
| C. | endometrium |
| D. | epididymis |
| Answer» C. endometrium | |
| 170. |
The primary male sex hormone produced by male reproductive system is |
| A. | gibberellins |
| B. | testosterone |
| C. | adrenalin |
| D. | thyroxine |
| Answer» C. adrenalin | |
| 171. |
The fertilization of the ovum takes place in the proximal part of the |
| A. | uterus |
| B. | oviduct |
| C. | vagina |
| D. | cervix |
| Answer» C. vagina | |
| 172. |
Despite the tape worm being bisexual, cross fertilization is ensured to maintain |
| A. | genetic recombination |
| B. | genetic variability |
| C. | new combinations of traits |
| D. | all of the above |
| Answer» E. | |
| 173. |
The queen bee in honey bees |
| A. | carries male gametes from male |
| B. | lay unfertilized egg |
| C. | keeps the sperms stored |
| D. | all of the above |
| Answer» E. | |
| 174. |
Tobacco is included in the category of |
| A. | short day plants |
| B. | long day plants |
| C. | day neutral plants |
| D. | neutral plants |
| Answer» B. long day plants | |
| 175. |
In females the production of egg is a |
| A. | continuous process |
| B. | cyclic activity |
| C. | never ending process |
| D. | once in a life time event |
| Answer» C. never ending process | |
| 176. |
In plants the detection of either light or darkness is the responsibility of |
| A. | chlorophylls |
| B. | carotenes |
| C. | phytochromes |
| D. | xanthophylls |
| Answer» D. xanthophylls | |
| 177. |
The technique in which cambium tissue is provided nutrients to grow and differentiate into a new plant is called |
| A. | gene sequencing |
| B. | tissue culture technique |
| C. | gene therapy |
| D. | genetic engineering |
| Answer» C. gene therapy | |
| 178. |
The pituitary gland on the onset of puberty releases |
| A. | somatotrophin hormone (STH) |
| B. | thyroid stimulating hormone (TSH) |
| C. | follicle stimulating hormone (FSH) |
| D. | oxytocin |
| Answer» D. oxytocin | |
| 179. |
Premature birth or miscarriage is caused by disturbances in the secretion of |
| A. | progesterone |
| B. | oxytocin |
| C. | estrogen |
| D. | testosterone |
| Answer» B. oxytocin | |
| 180. |
The blue light sensitive pigments found in plants are called |
| A. | phytochromes |
| B. | chlorophylls |
| C. | anthocyanins |
| D. | carotenes |
| Answer» B. chlorophylls | |
| 181. |
The female body is prepared for lactation by |
| A. | luteotropic hormone (LTH) |
| B. | human placental lactogen |
| C. | oxytocin |
| D. | both a and b |
| Answer» E. | |
| 182. |
Spermatogonia are produced by repeated division by the cells of |
| A. | vas deferens |
| B. | symphysis pubis |
| C. | germinal epithelium |
| D. | rectum |
| Answer» D. rectum | |
| 183. |
The process of development of a haploid offspring from a haploid egg is called |
| A. | haploid parthenogenesis |
| B. | diploid parthenogenesis |
| C. | single parthenogenesis |
| D. | none of above |
| Answer» B. diploid parthenogenesis | |
| 184. |
The twins which are produced asexually are |
| A. | dizygotic twins |
| B. | non-identical twins |
| C. | identical twins |
| D. | none of above |
| Answer» D. none of above | |
| 185. |
Through internal fertilization offspring are produced by |
| A. | two different methods |
| B. | three different methods |
| C. | four different methods |
| D. | five different methods |
| Answer» C. four different methods | |
| 186. |
A warm spell in winter for seed is |
| A. | permanent favourable |
| B. | temporary favourable |
| C. | apparently favourable |
| D. | not favourable |
| Answer» C. apparently favourable | |
| 187. |
Certain very precise environmental cues are required for |
| A. | seed dormancy |
| B. | pollination |
| C. | seed germination |
| D. | seed formation |
| Answer» D. seed formation | |
| 188. |
External Fertilization occurs in |
| A. | terrestrial environment |
| B. | air |
| C. | aquatic environment |
| D. | both land and water |
| Answer» D. both land and water | |
| 189. |
The sperm fertilizes the |
| A. | primary oocyte |
| B. | oogonia |
| C. | secondary oocyte |
| D. | polar body |
| Answer» D. polar body | |
| 190. |
THE_PROCESS_OF_FUSION_OF_NUCEUS_OF_TWO_MATING_TYPES_IS_KNOWN_AS_PLASMOGAMY.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 191. |
Which of the following spores are formed by disjointing of hyphal cells?$ |
| A. | Conidiospores |
| B. | Chlamydospores |
| C. | Oidia |
| D. | Zoospores |
| Answer» D. Zoospores | |
| 192. |
In_which_of_the_following_process_does_the_male_nucleus_migrates_through_a_fertilization_tube_into_the_female_gametangium?$ |
| A. | Gametic copulation |
| B. | Gamete-gametangial copulation |
| C. | Gametangial copulation |
| D. | Somatic copulation |
| Answer» C. Gametangial copulation | |
| 193. |
Which of the following spores are formed at the tips of sterigmata? |
| A. | Zygospores |
| B. | Oospores |
| C. | Basidiospores |
| D. | Blastospores |
| Answer» D. Blastospores | |
| 194. |
How many ascospores are present in each ascus? |
| A. | Four |
| B. | Six |
| C. | Two |
| D. | Eight |
| Answer» E. | |
| 195. |
There are one or more oospheres in each oogonium. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 196. |
Asexual fruiting bodies have name such as ________________ |
| A. | perithecium |
| B. | pycnidium |
| C. | antheridium |
| D. | apothecium |
| Answer» C. antheridium | |
| 197. |
Spores formed by sexual reproduction on a club-shaped structure are _______________ |
| A. | Ascospores |
| B. | Zygospores |
| C. | Basidiospores |
| D. | Oospores |
| Answer» D. Oospores | |
| 198. |
Which among the following are spores formed by budding? |
| A. | Arthrospores |
| B. | Chlamydospores |
| C. | Blastospores |
| D. | Conidiospores |
| Answer» D. Conidiospores | |
| 199. |
Aplanospores are ___________________ |
| A. | motile sporangiospores |
| B. | nonmotile sporangiospores |
| C. | oidia |
| D. | chlamydospores |
| Answer» C. oidia | |
| 200. |
Which among the following are asexual spores? |
| A. | Blastospores |
| B. | Ascospores |
| C. | Basidiospores |
| D. | Zygospores |
| Answer» B. Ascospores | |