MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Biology

Identify the properties that a cloning vector must possess to be efficiently used in rDNA technology.

1. Control elements like promoter, operator, ribosomal binding sites
2. Restriction sites
3. Marker genes
4. Ori of replication
5. Ability to replicate independently

Which of the following DNA sequence is recognised and cut by EcoR I?

Which type of T-cells are responsible for producing lymphokines and stimulation of B- cells?

Identify the process by which bacteria protect their own DNA from the attack of restriction enzymes.

Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:

(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)

The following identifies the major features of technology that differentiate modem biotechnology from classical biotechnology.

i. Capability of science to change the genetic material for getting new specific products through rDNA technology, polymerase chain reaction (PCR), microarrays, cell culture and fusion, and bioprocessing.

ii. Ownership of technology and its sociopolitical impact.

iii. Modem biotechnology makes use of only fermentation technology.

iv. Classical biotechnology relies only on principles of plant and animal tissue culture. 

In which of the following techniques, charged molecules (DNA, RNA and Proteins) are separated by applying the electric field?

Consider there is only one double stranded DNA molecule initially along with all other requirements of PCR. If a PCR machines performs 10 cycles of reaction then bow many double stranded DNA molecules would be present at the end?

In order to carry out excretion, the liver of birds synthesize ____________.

Identify the cells which release the antibodies.

Which of the following trends is observed in species diversity with respect to latitude?

From which of the following organisms the enzyme Taq polymerase used in PCR technique is obtained?

____________ cuts the DNA within the specific positions.

Which of the following is NOT a property of water?

All of the following are the properties of water, EXCEPT

Which of the following is the right combination of primers in a PCR to amplify the DNA product?

The nitrogenous waste ofuricotelic animals is ____________.

Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.

______ is the soil bacterium that causes crown gall characterized by tumors in plants.

______ is secreted by killer T - cells.