
Biology 10 ICSE
Quiz by Swati Parab
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1. Alleles refers to ___
2. Heterozygous chromosomes are _____
3. In which of the following condition ,the recessive gene expresses itself?
4. In a human female ,ovum consists of :
5. A mature sperm of human male contains :
6. Which type of gene is only expressed if there are two genes of that type of gene are present?
7. The technical term for the sudden inheritable change in the gene is :
8. Identify the odd from the following term:
9. Name the physical expression of gene in an individual.
10. After crossing of pure breed tall plant with round seed and short plant with wrinkled seeds ,the possible outcome of F2 generation will be :Â Â
11. How many pairs of sex chromosomes are present in zygote of human beings?
12. Which of the following is heterozygous?
Assertion and Reason questions 13-17
13. Assertion: Chromosomes other than the pair of sex-chromosomes are called alleles
Reason: Alleles control different expressions of the same character
14. Assertion: Genotype is the gene complement of an individual
Reason: For recessive gene,the phenotype is dissimilar to genotype.
15. Assertion: Root hairs become flaccid and droop when excess fertilizers are added to the moist soil around them.
Reason: Formation of hypertonic solution which results in plasmolysis.
16. Assertion: potato cubes when placed in water become firm and increase in size.
Reason: Potato tuber cells have very high absorbing capacity.
17. Assertion: High concentration of salt is added to pickles
Reason: It allows pickle to be preserved for long duration.
18. Name the phenomenon that is labelled A in the diagram.

19.What does arrow B indicates?

20. What process does arrow C indicates in relevance to the diagram?

21. A factor that will increase the rate of the phenomenon shown by A :

22. Name the parts labelled as A and B.

23. The root hair cell is in a turgid state. Which process is responsible for this state?

24. Which pressure is exerted by the cells of roots that helps in water movement?

photolysis of water
Photophosphorylation
Destarching
Autotrophs
Chloroplast
Guard cells
Phloem
Stroma
State the exact location of the following :
Thylakoids
State the exact location of the following:
chloroplastÂ
State the exact location of the following:
Grana
When a plant is kept in a dark room for about 48 hrs before conducting any experiment on photosynthesis to :
In the destarched plant, the leaves become decolorise as theÂ
Each flattened stacks of membranous coined like structure inside the chloroplast are known as :
The process of conversion of several molecules or glucose to one molecule of starch is calledÂ
Which type of tissue transports starch from the leaves to all parts of the plant body