DNA and variation

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

Any change in the DNA is called a/an

• mistake
• exon
• mutation
• intron

Tags

NGSS.HS-LS3-2

The passing of physical characteristics from parent to offspring is called ________.

• recessive

• dominant

• heredity

• brown eyes

Tags

NGSS.MS-LS3-2

What are sources of genetic variation?

• mutations
• genetic shuffling
• mutations and genetic shuffling
• mutations and migrations

Tags

NGSS.HS-LS3-2

There are 100 rabbits and 50 of them are brown, what is the relative frequency of brown?

• 25%
• 50%
• 75%
• 100%

Differences that exist naturally among members of a population or species___?

• mutation
• adaptation
• variations
• evolution

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-3

Change in a gene or chromosome

• evolution
• variation
• mutation
• adaptation

Tags

NGSS.HS-LS3-2