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

51

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?

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

Its phenotype will be white flowers

All the gametes produced will have the same flower colour allele

It has a homozygous dominant genotype

2 / 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:

All green

All yellow

1/4 yellow, 3/4 green

1/4 green, 3/4 yellow

3 / 15

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

Physical type

Karyotype

Genotype

Phenotype

4 / 15

Genes contain Instructions for the synthesis of;

Carbohydrates

Proteins

Vitamins

Fats

5 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Co-dominance

Mutation

Replication

Inheritance

6 / 15

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

Histology

Genetics

Artificial selection

Natural selection

7 / 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

8 / 15

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

Ribosomes

mRNA

Nucleosomes

Lysosomes

9 / 15

Chromosomes carry units of Inheritance called as;

None of these

genes

Chromatin

DNA

10 / 15

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

The discovery of alleles

The idea that genes are found on chromosomes

Determining that informations contained in DNA are for protein synthesis

Explanation of the patterns of inheritance

11 / 15

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

2

4

1

8

12 / 15

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

23

40

22

46

13 / 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 largest and most aggressive

Have no natural predators

Are born first and grow fastest

Are best adapted to the environment

14 / 15

Chromatin is made up of:

DNA+Protein

None of these

DNA

Proteins

15 / 15

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

Homologous

Homozygous

Heterozygous

Hemizygous

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