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

During a dihybrid cross with contrasting characters in the F₂ generation, parental genotypes will appear in ______.

Which of the following enzyme catalyses the removal of nucleotides from the end of DNA molecules?

Identify the desirable characteristics for a plasmid used in rDNA technology from the following.

1. Ability to multiply and express outside the host in a bioreactor.
2. A highly active promoter.
3. A site at which replication can be initiated.
4. One or more identifiable marker genes.
5. One or more unique restriction sites.

Two alternative forms of genes or alleles are located on ______.

Genetic diversity is the measure of ______.

Which of the following is the number of alleles for blood group in an individual?

Parents of blood group i and AB cannot have a child of blood group AB because ______.

The given figure is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly indentites its certain component(s)?

Match the items given in Column I with those listed in Column II. Choose the answer with correct combination of alphabets of the two columns.

Which of these are most widely used in genetic engineering?

Which of the following statements are true about cloning vectors?

1. Vectors are DNA molecules that carry a foreign DNA segment.
2. The replicated DNA is introduced into the host cell.
3. It possesses the origin of replication (Ori).
4. Vectors may be plasmid, bacteriophage, Yeast artificial chromosomes (YACs), etc.
5. Vectors do not require a selectable marker to identify and eliminate non-transformants.

Choose the correct answer from the options given below.

Consider the following pairs and choose the right answer from the codes given below.

1. Man - Uricotetic
2. Bird - Ammonotelic
3. Fish - Uricotetic
4. Frog - Ureotelic

Read the given statements and select the correct option. 

1. Water molecules have very weak adhesive and cohesive forces of attraction.
2. Water can easily rise in capillaries due to high surface tension and high adhesive and cohesive force.

Which of the above statement(s) is/are correct?

The medicinal plant, Rauwolfia vomitoria, growing in Himalayan ranges shows variation in terms of the potency and concentration of the chemical (resperine) that it produces. It is an example of ______.

Study the following lists and choose the correct match.

What is the mode of excretion performed in Xenopus?

The Western Ghats have a greater amphibians diversity than the Eastern Ghats. It is an example of ______.

Which of the following option is true about gout?

pBR322, used very frequently in cloning experiments as a vector in E. coli is ______. 

The plasmid of Agrobacterium tumefaciens that is now modified as a cloning vector is ______.