Biology 10 Chapter 15 MCQs Test 1

In Biology 10 Chapter 15 MCQs Test 1, there are 15 MCQs. A total of 5 MCQs Tests are available from Chapter 15 of FBISE Class 10 Biology Book. We have prepared 75 multiple-choice questions, which are divided into five MCQs Tests.

Practice
MCQs Test No 1

37

Class 10 Biology
Chapter 15
Practice MCQs Test No 1

1 / 15

Chromosomes carry units of Inheritance called as;

DNA

None of these

genes

Chromatin

2 / 15

How many pairs of homologous chromosomes are there in human body cell?

46

22

40

23

3 / 15

A purple-flowered pea plant has the genotype PP. Which of the following statements about this plant is FALSE?

When bred to a white-flowered plant, all offspring will be purple flowered

It has a homozygous dominant genotype

All the gametes produced will have the same flower colour allele

Its phenotype will be white flowers

4 / 15

In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod colour is dominant, the resulting offsprings (F1 generation) will be:

1/4 yellow, 3/4 green

1/4 green, 3/4 yellow

All green

All yellow

5 / 15

An organism's expressed physical trait, such as seed colour or pod shape, is called its:

Genotype

Phenotype

Physical type

Karyotype

6 / 15

DNA wraps around histone protein and forms rounded structures called as;

Lysosomes

Ribosomes

mRNA

Nucleosomes

7 / 15

Mendel's primary contribution to our understanding of inheritance was;

The discovery of alleles

The idea that genes are found on chromosomes

Explanation of the patterns of inheritance

Determining that informations contained in DNA are for protein synthesis

8 / 15

Branch of biology that deals with the study of inheritance Is called as;

Histology

Genetics

Artificial selection

Natural selection

9 / 15

Genes contain Instructions for the synthesis of;

Fats

Proteins

Carbohydrates

Vitamins

10 / 15

How many genetically different kinds of gametes an individual with genotype AAbb can produce?

4

2

1

8

11 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Inheritance

Replication

Co-dominance

Mutation

12 / 15

Chromatin is made up of:

None of these

DNA+Protein

DNA

Proteins

13 / 15

Which of the following statements regarding genes is FALSE?

A gene contains information for the production of a protein

Genes consist of a long sequence of DNA

Each cell contains a single copy of every gene

Genes are located on chromosomes

14 / 15

An organism has two different alleles for a single trait. Its genotype Is said to be;

Heterozygous

Homozygous

Hemizygous

Homologous

15 / 15

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According to Darwin, the offspring that are most likely to survive are those that;

Are born first and grow fastest

Are best adapted to the environment

Are largest and most aggressive

Have no natural predators

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