Genetics Introduction

Which of the following best describes a DNA molecule?

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

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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

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

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NGSS.MS-LS3-1

A specific sequence of DNA nucleotides that codes for a specific protein is known as..

• A gene
• A nucleotide
• A polypeptide
• An allele

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NGSS.HS-LS1-1

Any change in the sequence of nucleotides in DNA or RNA is known as...

• A mutation
• A transition
• An antinucleotide
• A transfer

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NGSS.HS-LS3-2

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Which series is arranged in order from largest to smallest in size?

• chromosome, nucleus, cell, DNA, nucleotide
• cell, nucleus, chromosome, DNA, nucleotide
• nucleotide, chromosome, cell, DNA, nucleus
• cell, nucleotide, nucleus, DNA, chromosome

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NGSS.HS-LS1-2

traits that show up more often

• dominant
• recessive

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

The process in which a cell splits in two...

• cell nucleus
• cell division
• replication
• inherit

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NGSS.HS-LS1-4

True or False? A tightly wound bundle of DNA is a chromosome.

• False
• True