Biology Lab questions Based on a DNA molecule slide Viruses

Biology Lab questions

Based on a DNA molecule slide:

Viruses seem to be made of nucleic acid like the DNA shown here, and coated by a layer of A). Starch B). Protein C). Sugar D). Fat

Bacteria and viruses may change the genotype of an organism through A). Diffusion B). Mitosis C). Transformation D). Immunization

Based on a slide on coiling in chromosomes:

Chromosomes condense and contract during (there are two correct answers) A). Mitosis B). Metamorphosis C). Meisis D). Nucleus

Solution

Viruses seem to be made of nucleic acid like the DNA shown here, and coated by a layer of B). Protein

Viruses seem to be coated by a layer of protein shell called capsid.

Bacteria and viruses may change the genotype of an organism through

C). Transformation

Transformation refers to a process of bacterial cell taking up genetic material

Chromosomes condense and contract during (there are two correct answers)

A). Mitosis

C). Meiosis

During cell division events such as Meiosis and mitosis the chromosomes condense and become compact