Eukaryotic chromosomes have evolved ________ at the ends of linear chromosomes to ensure the replication of the two ends of the chromosomes.
A) methylases
B) capping proteins
C) ligases
D) telomeres
E) single-stranded binding proteins
D) telomeres
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The concepts of transcription and translation have been said to form the ‘central dogma’ of molecular biology. Is this a
fitting description? What will be an ideal response?
Cilia lining the respiratory tubes beat mucus upward in order to:
a. moisten the bronchioles. b. conduct the mucus that contains particles to the pharynx and away from the lungs.
c. provide mucus to the lungs to prevent them from dehydrating. d. lubricate the throat for easier swallowing. e. promote gas exchange by providing mucus for the respiratory surfaces.
In the pathway to form cells, which was the last to form
What will be an ideal response?
A testcross is
A) a mating between an individual of unknown genotype and an individual homozygous recessive for the trait of interest. B) a mating between an individual of unknown genotype and an individual heterozygous for the trait of interest. C) a mating between two individuals heterozygous for the trait of interest. D) a mating between two individuals of unknown genotype.