MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 2551. |
The first hormone artificially produced by culturing bacteria is______ |
| A. | Insulin |
| B. | thyroxine |
| C. | Testosterone |
| D. | Adrenaline |
| Answer» B. thyroxine | |
| 2552. |
Plasmids are the suitable vectors for genetic cloning as..... |
| A. | they are indispendable |
| B. | they are self replicating units |
| C. | they are essential for bacterial reproducation |
| D. | None of the above |
| Answer» C. they are essential for bacterial reproducation | |
| 2553. |
There are special proteins that help to open up DNA double helix in front of the reaplication work . these proteins are........ |
| A. | DNA gyrase |
| B. | DNA polymerase I |
| C. | DNA ligase |
| D. | DNA topoisomerase |
| Answer» B. DNA polymerase I | |
| 2554. |
The organism whoes gene have been artificially altered for desired efect is called as....... |
| A. | genetically mutant organism |
| B. | gene transfer |
| C. | genetically modified organism |
| D. | Genetically transferred organism |
| Answer» D. Genetically transferred organism | |
| 2555. |
Restriction enzymes belong to which class of enzymes ? |
| A. | Nucleolase |
| B. | Exo nucleases |
| C. | Nucleases |
| D. | Endonucleases |
| Answer» C. Nucleases | |
| 2556. |
Restriction enzymes are isolated chielfy from....... |
| A. | Algae |
| B. | Fungi |
| C. | Protozoans |
| D. | Prokaryotes |
| Answer» C. Protozoans | |
| 2557. |
Retro viruses have genetic matetial which is |
| A. | DNA |
| B. | RNA |
| C. | both DAN & RNA |
| D. | proteins |
| Answer» C. both DAN & RNA | |
| 2558. |
A sequence of in a genome at which replication is intiated in ......... |
| A. | origin of relpication |
| B. | selectable marker |
| C. | cloning site |
| D. | origin of restriction |
| Answer» C. cloning site | |
| 2559. |
How many restriction enzymes are known to be isolated ? |
| A. | more than 800 |
| B. | more than 700 |
| C. | more than 600 |
| D. | more than 900 |
| Answer» C. more than 600 | |
| 2560. |
Which of the following is used in genetic engineering ? |
| A. | Restrication endonuclease |
| B. | Mycobacterium |
| C. | Entameha |
| D. | Pepsin |
| Answer» B. Mycobacterium | |
| 2561. |
Genetic engineering is possile because |
| A. | the phenomenon of transducation in bacteria is well understood |
| B. | we can see DNA by electron microscope |
| C. | we can cut DNA at specific sites by endonucleases like DNA ase I |
| D. | restrication endonuclease purified from bacteria can be used in vitro |
| Answer» B. we can see DNA by electron microscope | |
| 2562. |
Two bacteria found to be very useful in genetic engineering experiments are...... |
| A. | Nitrosomonas and Klebsiella |
| B. | Escherichia and Agrobacterium |
| C. | Nitrobacter and Azotobacter |
| D. | Rhizobium and Diplococcus |
| Answer» C. Nitrobacter and Azotobacter | |
| 2563. |
Function of epididymis is ... |
| A. | A temporary storagesite |
| B. | For the immature sperms complete their maturation process |
| C. | Gain the ability of swimming (motility) |
| D. | All of these |
| Answer» E. | |
| 2564. |
What is the region present between part of seminal vesicle and duct of urinary bladder called ? |
| A. | Ejaculatory duct |
| B. | Duct of urinary |
| C. | Urethra |
| D. | Seminal vesicle duct |
| Answer» B. Duct of urinary | |
| 2565. |
Where testes are situated? |
| A. | Abdominal cavity |
| B. | Dorsalside of abdominal cavity |
| C. | (a) and (b) both |
| D. | Scrotal sac. |
| Answer» E. | |
| 2566. |
Ti Plasmid is a cloning vector which works with |
| A. | All the plants |
| B. | Dicots only |
| C. | Monocots only |
| D. | Thallophytes only |
| Answer» C. Monocots only | |
| 2567. |
Genes which helps in the growth of transformants are ..... |
| A. | orgin of replication |
| B. | cloning site |
| C. | origin of restriction |
| D. | selectable marker |
| Answer» B. cloning site | |
| 2568. |
Which connective tissue surrounds testis ? |
| A. | Fibrous tissue |
| B. | Spongy connective tissue |
| C. | Tunica albuginea |
| D. | None of them |
| Answer» D. None of them | |
| 2569. |
What is the size of testis? |
| A. | 6 cm length and 2.5 cm diameter |
| B. | 5 cm length and 2.5 cm diameter |
| C. | 5 cm length and 3.5 cm diameter |
| D. | 6 cm length and 3.5 cm diameter |
| Answer» C. 5 cm length and 3.5 cm diameter | |
| 2570. |
Which of the following gland is seen in male reproductive system ? |
| A. | Seminal vesicle |
| B. | Prostate gland |
| C. | Bulbourethral gland |
| D. | All of these |
| Answer» E. | |
| 2571. |
Which cells secretes testosterone ? |
| A. | Sertoli cell |
| B. | Germinal cells |
| C. | Interstitial cells |
| D. | (a)and(b)both |
| Answer» D. (a)and(b)both | |
| 2572. |
Which of the following character is seen in male? |
| A. | Muscles are comparitively weak |
| B. | Voice is shrill |
| C. | Voice is heavy |
| D. | Beard and mustache is not seen |
| Answer» D. Beard and mustache is not seen | |
| 2573. |
In testis which cells are present in the interstitial space between seminiferous tubules? |
| A. | Sertoli cell |
| B. | Germinal cells |
| C. | Leydigs cells |
| D. | (a)and(b)both |
| Answer» D. (a)and(b)both | |
| 2574. |
What is length of vas deference ? |
| A. | 45 inch |
| B. | 45 mm |
| C. | 45 cm |
| D. | 4.5 meter |
| Answer» D. 4.5 meter | |
| 2575. |
Which hormone is released from testes ? |
| A. | Testosterone |
| B. | Estrogen |
| C. | Progesterone |
| D. | Relaxin |
| Answer» B. Estrogen | |
| 2576. |
The distal end of vas deference is expanded and in this region the opens ? |
| A. | Prostate gland |
| B. | Bulbourethral gland |
| C. | Seminal vesicle |
| D. | Ejaculatory duct |
| Answer» D. Ejaculatory duct | |
| 2577. |
In male accessory reproductive glands which is incorrect ? |
| A. | Seminal vesicle |
| B. | Prostate gland |
| C. | Urinary bladder |
| D. | Bulbourethral gland |
| Answer» D. Bulbourethral gland | |
| 2578. |
When sperms are transported in to vas deference from epididymis ? |
| A. | Male is not sexually stimulated |
| B. | Male is sexually stimulated |
| C. | The walls of the epididymis contract |
| D. | First -b and after -c process occurs |
| Answer» E. | |
| 2579. |
In testis which cells produce sperms? |
| A. | Germinal cell |
| B. | Epithelial cell |
| C. | Sertoli cell |
| D. | Both a and c |
| Answer» B. Epithelial cell | |
| 2580. |
Where seminiferous tubules of each lobe empty sperms ? |
| A. | Vas deference |
| B. | Vasa efferentia |
| C. | Epididymus |
| D. | Seminal vesicles |
| Answer» C. Epididymus | |
| 2581. |
Which of the following character is seen in female ? |
| A. | Muscles arestrong |
| B. | Mammary gland is well developed |
| C. | Voice is heavy |
| D. | Mammary gland is namesake only |
| Answer» C. Voice is heavy | |
| 2582. |
Where is situated epididymis ? |
| A. | External surface of the testi |
| B. | Above the testis |
| C. | Below the testis |
| D. | Internal surface of the testis |
| Answer» B. Above the testis | |
| 2583. |
Through which of the following vas deferens runs upward from epididmis and enter the abdominal cavity ? |
| A. | Ejaculatory duct |
| B. | Inguinal canal |
| C. | Urethra |
| D. | (a)and(b)both |
| Answer» C. Urethra | |
| 2584. |
Duct of which gland join with urethra before it passed through penis ? |
| A. | Prostate gland |
| B. | Bulbourethral gland |
| C. | Seminal vesicle gland |
| D. | (a)and(b)both |
| Answer» C. Seminal vesicle gland | |
| 2585. |
How much lower the temperature of scrotal sac as compare to the normal body temperature ? |
| A. | 3oc |
| B. | 4oc |
| C. | 5oc |
| D. | 6oc |
| Answer» B. 4oc | |
| 2586. |
Seminiferous tubule in testis are lined with Which type of cells ? |
| A. | Germinal cell |
| B. | only germinal cells |
| C. | Sertoli cell |
| D. | Both a and c |
| Answer» E. | |
| 2587. |
Which hormone is realeased from ovaries ? |
| A. | Testosterone |
| B. | Estrogen |
| C. | Progesterone |
| D. | (b)and(c)both |
| Answer» E. | |
| 2588. |
Particle bombardment technique is also known as ..... |
| A. | Lipofection |
| B. | Electroporation |
| C. | Biolistic |
| D. | Micro injection |
| Answer» C. Biolistic | |
| 2589. |
Which is the first step in the process recombinant DNA technology ? |
| A. | denaturing of DNA |
| B. | Annealing of DNA |
| C. | Isolation of Donor DNA |
| D. | Down streaming |
| Answer» B. Annealing of DNA | |
| 2590. |
What is length of epididymis? |
| A. | 6 c.m |
| B. | 6 feet |
| C. | 6 meter |
| D. | 6 inch |
| Answer» D. 6 inch | |
| 2591. |
These are important set of enzymes used in biotechnology Match them with exact role |
| A. | (iii) (iv) (i) (ii) |
| B. | (iii) (v) (iv) (ii) |
| C. | (iv) (i) (v) (ii) |
| D. | (iii) (iv) (i) (ii) |
| Answer» D. (iii) (iv) (i) (ii) | |
| 2592. |
Which primers are used in annealing during amplification of gene ? |
| A. | Reverse primers |
| B. | Forward primers |
| C. | Oligo nucleotide primer |
| D. | Internal primers |
| Answer» B. Forward primers | |
| 2593. |
Which of the bollowing statement is incorrect ? |
| A. | cosmid contains gene coding for viral protein |
| B. | cosmid relpicates like plasmids |
| C. | cosmid has antibioticresistant marker gene |
| D. | cos sit has 12 bases helping to join complete genome to make it circular |
| Answer» B. cosmid relpicates like plasmids | |
| 2594. |
Which enzyne is used to break the membrane to relase animal DNA ? |
| A. | Lysozyme |
| B. | chitinase |
| C. | Celluose |
| D. | All the above |
| Answer» C. Celluose | |
| 2595. |
Gel electrophoresis is used for-- |
| A. | Isolation of DNA molecule |
| B. | Cutting of DNA in to fragments |
| C. | Separation of DNA fragments according to their size |
| D. | Construction of recombinant DNA by joining with cloning Vector |
| Answer» D. Construction of recombinant DNA by joining with cloning Vector | |
| 2596. |
Match the following and choose the correct combination from the option given ... (Karnatak PMT-2005) |
| A. | A = 3, B = 1, C = 5, D = 4 |
| B. | A = 1, B = 2, C = 3, D = 4, |
| C. | A = 2, B = 1, C = 3, D = 4 |
| D. | A = 4, B = 3, C = 1, D = 2 |
| Answer» D. A = 4, B = 3, C = 1, D = 2 | |
| 2597. |
Can you pick up from the figure how bacteria protects its own genone from degradation by restreiction endonuclease ? |
| A. | site specific coupling |
| B. | site specific oxidizing |
| C. | site specific oxidizing |
| D. | site specific methylases |
| Answer» E. | |
| 2598. |
This is figure of plasmid P BR322 Identiby what represented by A, B, and C |
| A. | A TcR, B ApR and C EcorI |
| B. | A TcR, B EcoRI and C ApR |
| C. | A - EcorI, B ApR and C TcR |
| D. | A ApR, B TcR and C EcoRz |
| Answer» E. | |
| 2599. |
Which of the following is related with genetic engineering ? |
| A. | Breeding |
| B. | somatic hybridization |
| C. | mutation |
| D. | Transgenic |
| Answer» E. | |
| 2600. |
Which enzyme is used to break the membrane to relase plant DNA ? |
| A. | Lysozyme |
| B. | Chitinase |
| C. | Cellulose |
| D. | All the above |
| Answer» B. Chitinase | |