Gamete cells (after meiosis) have…….copy/ies of each homologous chromosome/s?
a) two
b) one
c) four
d) five
Explanation: e.g. pea plant gametes have single 7 chromosomes
According to Mendel, diploid cells have ……copy/ies of each gene.
a) two
b) one
c) four
d) five
Explanation: each cell have pair of alleles like Rr for seed shape
According to Mendel, gamete cells have ……copy/ies of each gene.
a) one
b) two
c) four
d) five
Explanation: each gamete has only one allele either R or r for seed shape
DNA as a Heredity Material:
Chromosome contains……….
a) RNA
b) DNA
c) protein
d) both b and c
Explanation: protein = histone
In 1928, Fredrick Griffith made a series of unexpected observations while experimenting with………
a) E. coli
b) Clostridium tetni
c) S. typhae
d) Streptococcus pneumonae
Explanation: Griffith wasn't trying to identify the genetic material, but rather, trying to develop a vaccine against pneumonia.
