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Heredity and evolution

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Protein synthesized by DNA through RNA is called as.....

a)

Internal dogma

b)

Transition

c)

Central dogma

d)

Transcription

2.

The code for each amino acids consisting of three nucleotides is called as....

a)

Duplicate codon

b)

Singlet codon

c)

Triplet codon

d)

None of the above

3.

Who discovered the triplet codon for 20 amino acids.

a)

Dr.Har Govind Khorana.

b)

Albert Einstein

c)

Charles Darwin

d)

Marie Curie

4.

Identify the part labelled as 'x'

a)

Large intestine

b)

Small intestine

c)

Appendix

d)

Cecum

5.

Odd one out.

mRNA,rRNA, qRNA,tRNA,

a)

mRNA

b)

qRNA

c)

rRNA

d)

tRNA

6.

Which of the following nitrogenous base is not present in DNA?

a)

Thymine

b)

Uracil

c)

Adenine

d)

Guanine

7.

Odd one out

Coccyx ,intestine ,wisdom teeth , appendix.

a)

Coccyx

b)

Wisdom teeth

c)

Intestine

d)

Appendix

8.

Say true or false.

Appendix is a fully functional organ in ruminants.

a)

True

b)

False

9.

Evolution is...

a)

a slow change over time that explains how modern organisms came from ancient organisms.

b)

a slow change over time explains how ancient organisms came from modern organisms.

10.
"Survival of the Fittest" describes which theory
a)
a) natural selection
b)
b) gravity
c)
c) heredity
d)
d) string theory
11.

When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called what?

a)

Selective breeding

b)

Natural Selection

c)

Cloning

d)

Evolution of all species

12.

Who observed variations in the characteristics of plants and animals on the Galapagos?

a)

Hutton

b)

Lyell

c)

Darwin

d)

Malthus

13.

In addition to observing living organisms, Darwin studied the perserved remains of ancient organisms called

a)

fossils

b)

adaptations

c)

homologies

d)

vestigial structures

14.

Structures are similar in function but not in structure.

a)

Vestigial

b)

Homologous

c)

Analogous Structures

d)

Embryonic

15.

Codons are made of how many amino acids ?

a)

10

b)

15

c)

20

d)

28

16.

Which is the connecting link between Annelida and Arthropoda ?

a)

Reptiles

b)

Birds

c)

Peripatus

d)

Dinosaurs

17.

Neck of Giraffe is an example of which concept ?

a)

Lamarckism

b)

Connecting link

c)

Vestigial organ

d)

Anatomical evidences

18.

Transfer of information from a molecule of DNA TO mRNA is

a)

Translocation

b)

Mutation

c)

Transcription

d)

Evolution

19.
Two organisms that are closely related would have
a)
very similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
20.

Which of the following types of RNA carries information from the gene to the ribosome?

a)

mRNA

b)

tRNA

c)

rRNA

d)

All of the above