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Important Questions for ICSE Class 10 - CISCE - Biology

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the Biological/technical term for Complete stoppage of menstrual cycle in females

Appears in 3 question papers
Chapter: [0.034] The Reproductive System
Concept: Menstrual Cycle

Give appropriate biological/technical terms for the following:

A pair of corresponding chromosomes of the same size and shape, one from each parent.

Appears in 2 question papers
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

The Biological/technical term for The process of uptake of mineral ions against the concentration gradient using energy from the cell

Appears in 2 question papers
Chapter: [0.024] Absorption by Roots : the Processes Involved
Concept: Means of Transport > Active Transport

State the main function of the Eustachian tube

Appears in 2 question papers
Chapter: [0.033] The Nervous System
Concept: Ear: Parts and Functions of the Ear

 The diagram given below represents a system in the human body. Stud the diagram and answer the following questions:

Identify the system 

Appears in 2 question papers
Chapter: [0.034] The Reproductive System
Concept: Functions of Female Reproductive Organs

TT : Homozygous : : Tt : ____________

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

Give appropriate biological/technical terms for the following:

The type of immunity that exists in our body due to our genetic makeup.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

Give appropriate biological/technical terms for the following:

The suppressed allele of a gene.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

(i) What is the phenotype and genotype of the F1 generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?
(ii) Draw a Punnett square board to show the gametes and offsprings when both the parent plants are heterozygous for axial flowers.
(iii) What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?
(iv) State Mendel’s Law of Dominance.
(v) Name two genetic disorders commonly seen in human males.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

find odd one from following: Typhoid, Haemophilia, Albinism, Colour blindness.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: - Sex Linked Inheritance of Diseases

the Biological/technical term for The repeating components of each DNA strand lengthwise

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: - Sex Linked Inheritance of Diseases

the Biological/technical term for An alteration in the genetic material that can be inherited. 

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: - Sex Linked Inheritance of Diseases

Give scientific reasons : Colour blindness is more common in men than in women.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: - Sex Linked Inheritance of Diseases

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers :-
(i) Give the genotype and phenotype of the plants of F1 generation.
(ii) Mention the possible combinations of the gametes that can be obtained from the F1 hybrid plant.
(iii) State the Mendel’s law of Independent Assortment.
(iv) Mention the phenotypes of the off springs obtained in F2 generation.
(v) What is the phenotypic ratio obtained in F2 generation?

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

The cross between two parents having one pair of contrasting characters

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

___________ is the scientific name of garden pea, which Mendel used for his experiments.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

State Mendel’s law of Dominance.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

In a homozygous plant round seeds (R) are dominant over wrinkled seeds (r) : Draw a Punnett square to show the gametes and offspring when both the plants have heterozygous round seeds (Rr).

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

Mention the Phenotype and Genotype ratios of the offspring in F2 generation.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: Mendel’s Laws of Inheritance

Briefly explain the term ‘Mutation’.

Appears in 1 question paper
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals
Concept: Genetics: - Sex Linked Inheritance of Diseases
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