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

59

Class 10 Biology
Chapter 15
Practice MCQs Test No 1

1 / 15

Genes contain Instructions for the synthesis of;

Proteins

Carbohydrates

Fats

Vitamins

2 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Inheritance

Replication

Mutation

Co-dominance

3 / 15

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

Phenotype

Karyotype

Genotype

Physical type

4 / 15

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

46

22

40

23

5 / 15

Chromosomes carry units of Inheritance called as;

DNA

genes

Chromatin

None of these

6 / 15

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

Ribosomes

Nucleosomes

mRNA

Lysosomes

7 / 15

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

Determining that informations contained in DNA are for protein synthesis

The idea that genes are found on chromosomes

The discovery of alleles

Explanation of the patterns of inheritance

8 / 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

9 / 15

Chromatin is made up of:

DNA

Proteins

DNA+Protein

None of these

10 / 15

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

8

1

2

4

11 / 15

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

Hemizygous

Homologous

Heterozygous

Homozygous

12 / 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 best adapted to the environment

Have no natural predators

Are largest and most aggressive

Are born first and grow fastest

13 / 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 are located on chromosomes

Genes consist of a long sequence of DNA

14 / 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 green, 3/4 yellow

All green

1/4 yellow, 3/4 green

All yellow

15 / 15

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

Artificial selection

Histology

Natural selection

Genetics

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