In a nutritionally balanced diet, the main source of energy is _______.

a) proteins
b) carbohydrates
c) lipids
d) vitamins and minerals


Ans: b) carbohydrates

Biology & Microbiology

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Rosalind Franklin's research contribution was

essential in

a. establishing the single-stranded nature of DNA. b. establishing the principle of base pairing. c. establishing most of the principal structural features of DNA. d. sequencing DNA molecules. e. determining the bonding energy of DNA molecules.

Biology & Microbiology

During absorption in the small intestine, ____ cross the brush border cells, eventually ending up in the lymph vessels

a. simple sugars b. fatty acids and glycerol c. amino acids d. nucleotides e. complex sugars

Biology & Microbiology

Systolic pressure measures the force exerted by blood against the wall of a blood vessel during ventricular contraction.

a. true b. false

Biology & Microbiology

Comb shape in chickens also involves the interaction of two genes, but the F2 generation shows a typical 9:3:3:1 Mendelian ratio. How does this work?

What will be an ideal response?

Biology & Microbiology