CHOITHRAM SCHOOL MANIKBAGH INDORE
CLASS X Session: 2015-16
Subject: Science
Allotment Date: 15/01/2016
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Assignment No: 4
Submission Date: 21/ 01/2014
QUESTION
OBJECTIVE TYPE
Name the products formed when ethanol burns in air.
Name the part of the human eye that helps in changing the focal length of the
eye lens.
Why human being looks so different in terms of height, colors etc still
belong to same species.
SHORT ANSWER TYPE I
Differentiate between
a. homozygous and heterozygous
b. phenotype and genotype
A mixture of yellow and blue light is passed through an equilateral prism.
Draw a neat diagram when the light emerges out of the prism
How does the thickness of the eye lens change when we shift looking from a
distant tree to reading a book?
Two compounds X and Y have the same molecular formula C6H12.
Compound X is saturated while compound Y is unsaturated draw their
structures.
SHORT ANSWER TYPE II
Give reasons
1. Mendel chose pea plant for his experiments
2. Traits acquired during lifetime of an individual are not inherited.
3. All pea plants appear to be tall in F1 generation in Mendel’s
monohybrid cross
1. What are the different ways in which individual with a particular trait may
increase in a population?
2. What factors could lead to the rise of new species.
If heterozygous A blood group male marries to homozygous B blood group
female
(a) What blood groups their children likely to gain
(b) What is the probability of birth of girl child?
(c) Why females should not be blamed for the birth of girl child?
MARKS
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1
LEVEL
Knowledge
Understanding
1
hot
2
knowledge
2
understanding
2
logic
2
Hot
3
understanding
3
Multi conceptual
3
Value based
LONG ANSWER TYPE
11.
Complete the following reactions.
5
Logic
12.
(a) What is myopia? State two causes of myopia. With the help of labeled
ray diagrams show
(i) The eye defect myopia.
(ii) Correction of myopia using a lens.
(b) Why is the normal eye unable to focus on an object placed within 10 cm
from the eye?
5
Hot