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

107

Class 10 Biology
Chapter 15
Practice MCQs Test No 1

1 / 15

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

Its phenotype will be white flowers

It has a homozygous dominant genotype

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

All the gametes produced will have the same flower colour allele

2 / 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;

Have no natural predators

Are born first and grow fastest

Are best adapted to the environment

Are largest and most aggressive

3 / 15

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

Homozygous

Homologous

Heterozygous

Hemizygous

4 / 15

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

8

2

1

4

5 / 15

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

Natural selection

Histology

Genetics

Artificial selection

6 / 15

Chromatin is made up of:

Proteins

None of these

DNA+Protein

DNA

7 / 15

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

Ribosomes

mRNA

Nucleosomes

Lysosomes

8 / 15

Which of the following statements regarding genes is FALSE?

A gene contains information for the production of a protein

Each cell contains a single copy of every gene

Genes consist of a long sequence of DNA

Genes are located on chromosomes

9 / 15

Genes contain Instructions for the synthesis of;

Vitamins

Carbohydrates

Fats

Proteins

10 / 15

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

22

23

46

40

11 / 15

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

Explanation of the patterns of inheritance

Determining that informations contained in DNA are for protein synthesis

The discovery of alleles

The idea that genes are found on chromosomes

12 / 15

Chromosomes carry units of Inheritance called as;

None of these

genes

DNA

Chromatin

13 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Co-dominance

Replication

Mutation

Inheritance

14 / 15

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

Genotype

Phenotype

Karyotype

Physical type

15 / 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

All yellow

1/4 green, 3/4 yellow

All green

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