Question # 1

A purple flowered pea plant has the genotype PP, which of the following statements about this plant is FALSE.

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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

____________ hydrogen bonds are present between cytosine and guanine:

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2

3

4

5

Cytocine always pairs with:

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Guanine

Adenine

Uracil

Thymine

These are unit of inheritance.

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Genes

Alleles

Phenotype

Genotype

How many contrasting pairs of characters of pea plant were studied bu mendel?

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one

three

five

seven

It is a condition in which normal body pigments are absent:

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Color blindness

Albinism

Diabetes

Sickle cell anacmia

Genes consist of:

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DNA

RNA

mRNA

Protein

The allele which is nto expressed in F₁ generation is called:

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Dominant

Recessive

Mutant

Selected

Ribosome reads the sequence of mRNA nucleotides and joins specific amino acids to form protein . This step is known as.

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Combination

Replication

Transcription

Translation

An organism has two different alleles for a single trait its genotype is said to be.

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Homozygous

Heterozygous

Holozygous D

Hemizygous

How many genotypes are possible for the allele ''A'' and ''a'' ?

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two

three

four

seven

Branch of biology in which we study about inheritance.

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Pharmacology

Physiology

Ecology

Genetics

How many pairs of homologous chromosomes are present in human body cells.

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22

23

24

25

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