10th Class Biology Solved MCQS
How many contrasting pairs of characters of pea plant were studied bu mendel?
five
seven
one
three
In dihybrid cross the genotypic ratio of F2 generation is:
1 : 2 : 2 : 1
1 :3 :1 : 1
1 : 1 ; 1 : 1
9 : 3 : 3 : 1
Which of the following statement regarding genes is FALSE.
Each cell contain a single copy of every gene.
A gen contains information for the production of a protein
Genes consist of a long sequence of DNA
Genes are located on chromosomes
mRNA carries sequence of the nucleotides to ribosomes, Ribosomal reads this sequence and joins specific amino acid to form protein, this process is:
Duplication
Transcription
Replication
Translation
James Watson and Francis Crick proposed the structure of DNA in:
1953
1922
1963
1933
histone protein and forms-rounded structures called as
mRNA
Lysosomes
Ribosomes
Nucleosomes
Branch of biology that deals with the study of inheritance is called as:
Genetics
Artificial selection
Natural selection
Histology
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 offspring will be.
1/4 yellow, 3/4 green
1/4 green , 3/4 yellow
All yelow
All green
The location of position of ganes on chromosomes is called.
Phenotypes
Alleles
Loci
Genotype
Chromatin material is made of:
RNA
Protein
DNA and Protein
DNA
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