Biology EOC Review: 2004-2005

Front

What is the transcribed mRNA sequence for the DNA strand ATCCGTC?

Back

UAGGCAG

Front

What can be determined by observing embryos of two organisms?

Back

The organisms share a common ancestry.

Front

What is the primary cause of genetic variation during meiosis?

Back

"crossing over" of chromosomes

Front

What is diffusion?

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

What happens if all mitochondria are removed from a plant cell?

Back

It will be unable to carry out respiration.

Front

What is the function of mitochondria in a cell?

Back

Mitochondria are responsible for producing energy through respiration.

Front

Define meiosis.

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four gametes.

Front

What is the role of DNA in cells?

Back

DNA contains the genetic instructions for the development and function of living organisms.

Front

What is the significance of crossing over in meiosis?

Back

Crossing over increases genetic diversity by exchanging genetic material between homologous chromosomes.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of particles from high to low concentration, while osmosis specifically refers to the movement of water across a semipermeable membrane.