Fundamental Unit of Life_2
Quiz
•
Biology
•
9th Grade
•
Medium
Aishwaria Murthy
Used 41+ times
FREE Resource
33 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Name the structure that maintains identical
chromatids bound.
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
How are the chromosomes classified in relation to
the position of the centromere? On the basis of the position of the centromere, the chromosomes are of 4 types:
Telocentric
Acrocentric
Submetacentric
Metacentric
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Give the chemical nature of
The nucleolus is composed of RNA and proteins which form around specific chromosomal regions.
r-RNA, though also contains a small amount of DNA and proteins.
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
State two differences between outer and inner
nuclear membranes
The outer nuclear membrane is studded with ribosomes
and is continuous with Rough endoplasmic reticulum (RER) at some points.
the inner nuclear membrane is smooth (not studded with ribosomes) and is not connected with Rough endoplasmic reticulum (RER)
The outer layer is made of rough proteins
Inner layer is made of smooth proteins
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
How many chromosomes does a human normally
diploid cell has?
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
State the function of secondary constriction.
Secondary constriction is the site of r-RNA biosynthesis.
Primary Constriction from a cytological point of view, is considered the centromere.
Actually centromere ( as it plays most important role in chromatid separation during anaphase ) is present within the primary constriction.
Secondary constriction is also known as nucleolar organiser region(NOR) involved in the formation of nucleolus.
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Of which substance is chromatin made of?
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