The types of inheritable variations are

  • independent variations only
  • discontinuous variations only
  • continuous variations
  • independent and discontinuous variations

Discontinuous variations are controlled by

  • single gene pair
  • two genes
  • three genes
  • four genes

The Deoxyribonucleic Acid (DNA) structure was proposed in

  • 1949
  • 1963
  • 1958
  • 1953

A dominant allele does not affect the

  • colour of recessive allele
  • nature of recessive allele
  • kind of recessive allele
  • composition of recessive allele

French biologist was the first to hint at

  • inheritance
  • evolution
  • genetics
  • variations

The name of the theory proposed by Charles Darwin is the theory of

  • artificial selection
  • special selection
  • natural selection
  • special creation

The scientists who proposed the Deoxyribonucleic Acid (DNA) structures are

  • Francis crick and James Watson
  • James crick and Francis Watson
  • Marie curie and Niels Bohr
  • Nikola tesla and Marie curie

The nitrogenous base thymine of one nucleotide made the pair in another nucleotide with

  • hydrogen
  • cytosine
  • guanine
  • adenine

The situation in which no allele is dominant over the other is called

  • assorted dominance
  • segregated dominance
  • complete dominance
  • incomplete dominance

The trait "round seeds" was declared by Mendel as

  • dominant
  • recessive
  • genotype
  • phenotype

Recessive alleles are represented by

  • bold letters
  • italics
  • capital letters
  • lower case letters

The branch of biology which deals with the study of inheritance is called

  • genetics
  • environmental biology
  • industrial biology
  • microbiology

Considering the Deoxyribonucleic Acid (DNA) structure, the inside basis of the double helix is made up of

  • nitrogen
  • oxygen
  • phosphorus
  • magnesium

A gene is a part of

  • Ribonucleic acid (RNA)
  • cell
  • Deoxyribonucleic acid (DNA)
  • nucleus

The theory of natural selection was proposed by

  • Darwin
  • Mendel
  • C.D Buffen
  • Lamark

The examples of deviations from laws of inheritance proposed by Mendel includes

  • evolutionary dominance only
  • incomplete dominance only
  • co-dominance
  • evolutionary and incomplete dominance

How many hydrogen bonds are present between adenine and thymine?

  • one
  • two
  • three
  • four

The synthesis of RNA from DNA is

  • transcription
  • translation
  • metabolism
  • reduction

In natural selection, the variations are determined by

  • humans
  • plants
  • animals
  • environment

The notable work of Gregor Mendel is the development of principles of

  • genetics
  • skeletal structure
  • muscular structure
  • DNA structure

The ratio of phenotypes(round yellow seeds, round green seeds, wrinkled yellow seeds, and wrinkled green seeds) in Mendel's law of independent assortment of a pea plant is

  • 7:4:3:2
  • 9:3:3:1
  • 8:4:3:1
  • 10:2:3:1

Genotype represents the combination of

  • cells
  • chromosomes
  • Deoxyribonucleic acid (DNA)
  • genes

Model for the structure of DNA was presented by

  • Gregor Johann Mendel
  • Darwin and Lamark
  • Alfred Russel Wallace
  • j. Watson and F.Crick

The basic unit of inheritance is

  • nucleic acid
  • ribonucleic acid (RNA)
  • chromosome
  • gene

The characteristics that are passed to offsprings from parents are called

  • phenotype
  • traits
  • chromatin design
  • genotype

Considering the heterozygous genotype condition, the allele which prevents the expression of other allele is called

  • dominant allele
  • recessive allele
  • hybrid allele
  • monohybrid allele

The kind of genotype in which two different alleles are carried by a pair of the gene is called

  • homozygous genotype
  • heterozygous genotype
  • recessive genotype
  • dominant genotype

The genetic material which contains the instructions for the functions of cells is called

  • mDNA
  • mRNA
  • DNA
  • RNA

Considering the Deoxyribonucleic Acid (DNA) structure, the backbone outside the double helix is made up of

  • sugar and nitrogen
  • nitrogen and carbon
  • phosphate and sugar
  • phosphate and nitrogen

The law which states that the offspring gets the genes in pairs as of the male and female gametes is called the law of

  • segregation
  • assortment
  • independent assortment
  • dependent assortment
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