Biology sem 1 wk 3

Front

What shape did Franklin and Wilkins indicate DNA was found in?

Back

Double helix.

Front

What is the primary effect of sickle-cell anemia on the body?

Back

Inefficient oxygen transportation.

Front

What is hybridization in the context of breeding?

Back

Breeding two organisms with desirable traits to produce offspring with those traits.

Front

What is gene regulation?

Back

The ability of a bacterium, such as Escherichia coli, to control its gene transcription in response to environmental factors.

Front

What does it mean for DNA replication to be semiconservative?

Back

Each new DNA molecule consists of one original strand and one newly synthesized strand.

Front

What does semidiscontinuous replication refer to in DNA replication?

Back

The process where one strand is synthesized continuously while the other is synthesized in short segments.

Front

Who were the key scientists involved in discovering the structure of DNA?

Back

Rosalind Franklin and Maurice Wilkins.

Front

What is the significance of the double helix structure of DNA?

Back

It allows for the stable storage of genetic information and the mechanism for replication.

Front

How does sickle-cell anemia affect red blood cells?

Back

It causes them to become misshapen, leading to blockages in blood vessels and reduced oxygen delivery.

Front

What is the role of hybridization in genetics?

Back

To combine traits from two different organisms to create offspring with desired characteristics.