Chapter 16

In April of 1953 who shook the scientific world with the double helical model of DNA?

• Rosalind Franklin and Maurice Wilkins
• James Watson and Francis Crick
• Albert Einstein and Niels Bohr
• Charles Darwin and Gregor Mendel

According to your book, your genetic endowment includes

• your 46 chromosomes

• the mitochondria you inherited from your mother

• any and all chromosomes you add during your lifetime

Tags

NGSS.HS-LS3-1

Thomas Hunt Morgan was a scientist that did what?

• worked with fruit flies

• He discovered the structure of DNA.
• He established the chromosomal theory of inheritance.
• He proposed the theory of evolution.

Frederick Griffith came up with the idea of transformation as a result of working with mice and pneumonia. What is it?

• Transformation is the process of cell division.
• Transformation refers to the physical change of a cell's shape.
• Transformation is the process by which genetic material is taken up by a cell from its environment, leading to a change in the cell's characteristics.
• Transformation is the method of cloning organisms.

Erwin Chargaff developed a series of rules about what?

• Protein synthesis mechanisms.
• DNA base pairing rules.
• A= T, C= G

• Cellular respiration pathways.

In humans, how much adenine, thymine, guanine, and cytosine do we have?

• 35% adenine, 25% thymine, 25% guanine, 15% cytosine
• Approximately 30% adenine, 30% thymine, 20% guanine, and 20% cytosine.
• 25% adenine, 25% thymine, 25% guanine, 25% cytosine
• 40% adenine, 30% thymine, 20% guanine, 10% cytosine

Tags

NGSS.HS-LS3-1

Maurice Wilkins and Rosalind Franklin did what with regards to genetics?

• They invented the microscope used in genetic research.
• They contributed to the discovery of the DNA double helix structure using X-ray crystallography.

• They discovered the structure of RNA using X-ray crystallography.

• They proposed the theory of evolution.

Watson and Crick came up with the idea that DNA was in the shape of a double helix. What does that mean?

• DNA is shaped like a single strand.
• DNA resembles a flat sheet.
• DNA is shaped like a twisted ladder or double helix.
• DNA is structured like a circle.

True or False A human cell can copy its 3 billion nucleotide pairs and divide into daughter cells in only a few hours

• True

• False

Tags

NGSS.HS-LS1-4

True or False During DNA replication, it is remarkably accurate with only one error per 10 billion nucleotides.

• True

• False