Mitotic spindle is mainly composed of` which proteins?
Actin
Myosin
Actomyosin
Myoglobin
Living cell contains 60-75% water .Water present in human body is
60-65%
50-55%
75-80%
65-70%
RNA does not possess
uracil
thymine
adenine
cytosine
Which of the following is a reducing sugar?
Galactose
Gluconic acid
β-methyl galactoside
Sucrose
Amino acids are produced from
proteins
fatty acids
essential oils
α-keto acids
Cellulose,the most important constituent of plant cell wall is made of
unbranched chain of glucose molecules linked by α 1,4 glycosidic bond
branched chain of glucose molecules linked by β 1,4 glycosidic bond in straight chain and α 1,6 glycosidic bond at the site of branching
unbranched chain of glucose molecules linked by β 1,4 glycosidic bond
branched chain of glucose molecules linked by α 1, 6 glycosidic bond at the site of branching
A nucleotide is formed of
purine,pyrimidine and phosphate
purine,sugar and phosphate
nitrogen base ,sugar and phosphate
pyrimidine,sugar and phosphate
DNA is composed of repeating units of
ribonucleosides
deoxyribonucleosides
ribonucleotides
deoxyribonucleotides
In double helix of DNA,the two DNA strands are
coiled around a common axis
coiled around each other
coiled differently
coiled over protein sheath
Nucleotides are building blocks of nucleic acids.Each nucleotide is a composite molecule formed by
base-sugar-phosphate
base-sugar-OH
(base-sugar-phosphate)
sugar-phosphate