Which of the following are not the effects of Parathyroid hormone?
A.Stimulates the process of bone resorption
B.Decreases Ca²⁺ level in blood
C.Reabsorption of Ca²⁺ by renal tubules
D.Decreases the absorption of Ca²⁺ from digested food
E.Increases metabolism of carbohydrates
Choose the most appropriate answer from the options given below:

NEET-2022 Chemical-Coordination-and-Integration [class-xi ]

• B, D and E only
• A and E only
• B and C only
• A and C only
Correct Option: A  [ B, D and E only ]

Remark:

Match List-I with List-II with respect to methods of Contraception and their respective actions.

NEET-2022 Reproductive-Health [class-xii ]

• A-IV, B-I, C-II, D-III
• A-II, B-IV, C-I, D-III
• A-III, B-II, C-I, D-IV
• A-IV, B-I, C-III, D-II
Correct Option: A  [ A-IV, B-I, C-II, D-III ]

Remark:

If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?

NEET-2022 Principles of Inheritance and Variation [class-xii ]

• 50 %
• 75 %
• 100 %
• 25 %
Correct Option: C  [ 100 % ]

Remark:

Ten E.coli cells with ¹⁵N- dsDNA are incubated in medium containing ¹⁴N nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from ¹⁵N ?

NEET-2022 Molecular-Basis-of-Inheritance [class-xii ]

• 40 cells
• 60 cells
• 80 cells
• 20 cells
Correct Option: B  [ 60 cells ]

Remark:

The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%.
What will be the sequence of these genes on a linear chromosome ?

NEET-2022 Molecular-Basis-of-Inheritance [class-xii ]

• d, b, a, c
• a, b, c, d
• a, c, b, d
• a, d, b, c
Correct Option: C  [ a, c, b, d ]

Remark:

Which of the following statements is not true?

NEET-2022 Evolution [class-xii ]

• Sweet potato and potato is an example of analogy
• Homology indicates common ancestry
• Flippers of penguins and dolphins are a pair of homologous organs
• Analogous structures are a result of convergent evolution
Correct Option: C  [ Flippers of penguins and dolphins are a pair of homologous organs ]

Remark:

Select the incorrect statement with respect to acquired immunity.

NEET-2022 Human-Health-and-Disease [class-xii ]

• Anamnestic response is elicited on subsequent encounters with the same pathogen.
• Anamnestic response is due to memory of first encounter.
• Acquired immunity is non-specific type of defense present at the time of birth.
• Primary response is produced when our body encounters a pathogen for the first time.
Correct Option: C  [ Acquired immunity is non-specific type of defense present at the time of birth. ]

Remark:

Which of the following is not a desirable feature of a cloning vector?

NEET-2022 Biotechnology-Principles-and-Processes [class-xii ]

• Presence of a marker gene
• Presence of single restriction enzyme site
• Presence of two or more recognition sites
• Presence of origin of replication
Correct Option: C  [ Presence of two or more recognition sites ]

Remark:

Statements related to human Insulin are given below.
Which statement(s) is/ are correct about genetically engineered Insulin?
A. Pro-hormone insulin contain extra stretch of C-peptide
B. A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them.
C. Insulin used for treating Diabetes was extracted from Cattles and Pigs.
D. Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.
E. Some patients develop allergic reactions to the foreign insulin. Choose the most appropriate answer from the options given below:

NEET-2022 Biotechnology-and-its-Applications [class-xii ]

• B only
• C and D only
• C, D and E only
• A, B and D only
Correct Option: A  [ B only ]

Remark:

Given below are two statements:
Statement I: In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II: Particulate matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.
In the light of the above statements, choose the most appropriate answer from the options given below:

NEET-2022 Environmental-Issues [class-xii ]

• Both Statement I and Statement II are incorrect
• Statement I is correct but Statement II is incorrect
• Statement I is incorrect but Statement II is correct
• Both Statement I and Statement II are correct
Correct Option: A  [ Both Statement I and Statement II are incorrect ]

Remark: