The human body is made up of thousands of cells and these cells have a lifespan. We covered the process through which cells are replaced and the various types of cells that exist and their functions. Test yourself on how well you understood Molecular genetics and cellular reproduction below. All the best!
Transfer of DNA between bacteria through pili
Proliferation of T-lymphocytes
Release of interferon
Production of antihistamines
Bacteria's capsule interfering with phagocytosis
Synthesis of steroids by the bacteria
I and II
I and III
Polymerase chain reaction
Watson and Crick
Cytoplasm and the cell wall
They do not reproduce
Zone of maturation.
Ensures that variations within a species never occur.
Acts as a source of variations within a species.
Always produces genetic disorders.
Is called crossing.
Both have bacteria-like polysaccharide cel walls.
Both can reproduce on their own outside of the cell.
Both contain DNA molecules.
Both contain endoplasmic reticulum and Golgi bodies .
Both contain ribosomes that are identical to ribosomes of the eukaryotic cytoplasm.
They are a source of variation for evolution.
They drive evolution by creating mutation pressures.
They are irreversible.
They occur in germ cells but not in somatic cells.
They are most often beneficial to the organisms in which they occur.
A gene can code for a specific protein.
A gene can exist in alternate forms called introns.
A gene undergoes crossing-over during DNA replication.
A gene that is very similar in sequence in a human and in a bacterium is probably a recent mutation.
A gene that is expresses in every offspring of every generation is recessive.
Genes are compose of protein molecules
DNA and proteins are actually the same molecules located in different parts of the cells.
Bacteria injects their DNA into the cytoplasm of bacteriophages.
DNA is the molecule that stores genetic information in the cells.
DNA from RNA
DNA from DNA
RNA from DNA
RNA from RNA
Neither DNA nor RNA
DNA and RNA have the same structure.
DNA is made of two strands that twist into a double helix.
Guanine forms hydrogen bonds with adenine.
Thymine forms hydrogen bonds with cytosine.
Here's an interesting quiz for you.