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- An animal’s survival depends on its ability to acquire organic molecules from the environment.
- In humans, no tetrads form during mitosis.
- Non-polar organic molecules are insoluble in water.
- The interconversion of carbohydrates, proteins, and lipids in cells is an example of coordinated catabolic and anabolic activities.
- The size of the smallest known virus is about 20 nm.
- Klinefelter’s syndrome, Turner’s syndrome, and Down’s syndrome are all the result of meiotic non-disjunction.
- G2 phase preceeds mitosis during the cell cycle.
- Most cellular secretions are glycoproteins in nature.
- Genes are not found in pairs in sperm cells of frogs.
- rRNA constitutes about 80% of the total cellular RNA.
- A genome is the full set of genes of an individual.
- Nucleohistones play an important role in gene expression.
- There are about 20 types of tRNA.
- Cystic fibrosis is a disease resulting from a transmembrane carrier for chloride ions not being produced.
- 2,4-D is a weed killer.
- Five kingdom classification was proposed by Robert Whittaker.
- Fungi have an absorptive mode of nutrition.
- Algae and fungi in a lichen have characteristics resembling both plants and animals.
- Ligase enzyme can break open a plasmid ring.
- Evolution occurred according to Lamarch due to the inheritance of acquired characters.
