CHS Bio Final

Front

What is wobble base pairing?

Back

Wobble base pairing refers to the flexibility in the pairing of the third base of a codon with the corresponding anticodon, allowing for some non-standard pairings. This phenomenon helps in the translation process of mRNA into proteins.

Front

What does hydrophilic mean?

Back

Hydrophilic refers to molecules that are attracted to water and can interact with it, often due to the presence of polar or ionic groups.

Front

What is a ligand?

Back

A ligand is any molecule that binds to a receptor, often triggering a biological response.

Front

What does hemizygous mean in the context of genetics?

Back

Hemizygous refers to having only one copy of a gene in an otherwise diploid organism, commonly seen in males for genes located on the X chromosome.

Front

What is the difference between hypertonic and hypotonic solutions?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing cells to lose water. A hypotonic solution has a lower concentration of solutes, causing cells to gain water.

Front

What is osmosis?

Back

Osmosis is the movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the significance of the X chromosome in sex-linked traits?

Back

The X chromosome carries genes that can be expressed differently in males and females, leading to sex-linked traits, where males (XY) are more likely to express recessive traits.

Front

What is the role of codons in protein synthesis?

Back

Codons are sequences of three nucleotides in mRNA that specify which amino acid will be added during protein synthesis.

Front

What is the function of receptors in cells?

Back

Receptors are proteins that receive and respond to chemical signals, initiating a cellular response.

Front

What is the principle of diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration, driven by the concentration gradient.