Inheritance 10th biology punjab board

Inheritance 10th biology punjab board

 

_____ is the branch of biology in which we study inheritance.
immunology
Genetics
microbiology
none
______is a complex material, made of DNA and proteins.
Chromatin 
choromosomes
nucleosomes
none
DNA wraps around histone proteins and forms round structures, called____.
nucleosomes
nucleus
Chromatin
none
There are ___hydrogen bonds between adenine and thymine.
one
two
three
none
There are ____ hydrogen bonds between cytosine and guanine.
one
two
three
none
The locations or positions of genes on chromosomes are known as _____.
loci
terminator
promoter
none
Traits are made by specific_____.
Proteins
amino acid
vitamins
none
Specific sequence of DNA nucleotides in the form of messenger RNA is called____.
transcription
translation
both
none
Part of DNA contains particular synthesis of protein is called___.
genetics
genes
nucleoside
none
Position of genes on chromosomes is called _____.
loci 
chromatin
both
none
Each individual carries at least _____ pair of genes for each trait.
one
two
three
none
The alternate forms of a gene are called _____.
pair
alleles
both
none
The specific combination of genes in an individual is known as _____.
genotype
albinism
phenotype
none
The genotype in which the gene pair contains two identical alleles is called_____.
homozygous genotype
heterozygous genotype
both
none
The genotype in which the gene pair contains two different alleles is called_____.
homozygous genotype
heterozygous genotype
both
none
Allel which prevents the expression of the other, is called_____.
dominant
recessive
both
none
Allele which is not expressed is called _____.
dominant
recessive
both
none
Albinism is a ______ trait.
dominant
recessive
both
none
The expression of this genotype in the form of trait is called____.
genotype
phenotype
both
none
A cross in which only one trait is studied is called_____.
monohybrid
dihybrid
trihybrid
none
_____ is the situation, when two alleles express each other.
Co-dominance
In-complete dominance
dominance
none
______is the situation where, in heterozygous genotypes, both the alleles express
as a blend (mixture) and neither allele is dominant over the other.
Co-dominance
In-complete dominance
dominance
none
Discontinuous variations are controlled by the alleles of a _____gene pair.
single
double
Triple
none
Height, weight, feet size, intelligence etc. are example of ____variations.
continuous variation
discontinuous variation
both
none
A couple can produce more than _____genetically different children
70 million
70 billion
70 trillion
none
_______was the first to hint at evolution.
C. de Buffon
J. de Lamarck
both
none
______ first to propose a mechanism of evolution.
C. de Buffon
J. de Lamarck 
both
none
______ (1809–1882) proposed the mechanism of organic evolution in 1838.
C. de Buffon
J. de Lamarck
Charles Darwin
none
The bred animals are known as_____.
bird
breeds
larva
none

Inheritance 10th biology punjab board

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