CBSE-CLASS-XII SERIES
Biology

Origin And Evolution Of Man

9 previous year questions.

Volume: 9 Ques
Yield: Medium

High-Yield Trend

9
2024

Chapter Questions
9 MCQs

01
PYQ 2024
medium
biology ID: cbse-cla
(b) “DNA replication is continuous and discontinuous on the two strands within the replication fork.” Explain with the help of a schematic representation.
02
PYQ 2024
medium
biology ID: cbse-cla
Turner’s syndrome in humans occurs due to:
1
Aneuploidy
2
Euploidy
3
Polyploidy
4
Autosomal abnormality
03
PYQ 2024
medium
biology ID: cbse-cla
List the events that reduce the Biochemical Oxygen Demand (BOD) of a primary effluent during sewage treatment.
04
PYQ 2024
easy
biology ID: cbse-cla
(b) What are the arrows in the given figure indicating? Write the result obtained thereafter.
05
PYQ 2024
medium
biology ID: cbse-cla
The given DNA sequence:
5’ – G A A T T C – 3’
3’ – C T T A A G – 5’
(a) Name the restriction enzyme that recognises the given specific sequence of bases. What are such sequences of bases referred to as?
06
PYQ 2024
medium
biology ID: cbse-cla

Study the pedigree chart of a family showing the inheritance pattern of a certain disorder. Select the option that correctly identifies the nature of the trait depicted in the pedigree chart: 
 

1
Dominant X-linked
2
Recessive X-linked
3
Autosomal dominant
4
Autosomal recessive
07
PYQ 2024
medium
biology ID: cbse-cla
How many base pairs will be there in 20 nucleosomes in a DNA double helix?
1
4000
2
40
3
20
4
2000
08
PYQ 2024
medium
biology ID: cbse-cla
The population growth curve applicable for a population of beetles growing in nature under unlimited resource conditions available to them will be:
1
2
3
4
09
PYQ 2024
medium
biology ID: cbse-cla
Name the (i) ape-like (ii) man-like primates that existed 1.5 million years ago.

About Origin And Evolution Of Man - CBSE-CLASS-XII

Origin And Evolution Of Man is a vital chapter for CBSE-CLASS-XII aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

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