DNA_Day 2_2021

DNA_Day 2_2021

Multiple Choice

DNA is made of 2 main parts. The inside or rungs are made of ______.

• sugar

• phosphate

• nitrogen bases

• nuclotides

Multiple Select

A nucleotide is made of what 3 things?

• 1 sugar

• 1 nucleotide

• 1 phosphate

• 1 nitrogen base

Multiple Choice

What kind of macromolecule is DNA?

• lipid

• protein

• carbohydrate

• water

• nucleic acid

Multiple Select

The outside (backbone) of a DNA strand is made of _____ & _____.

• sugar

• phosphate

• nitrogen base

• nucleotide

• gene

Multiple Choice

When DNA makes a copy of itself for a new cell, it is called.....

• genes

• genetic code

• replication

• complication

• double helix

Multiple Choice

The protein helicase helps DNA replication in the first step. What happens during this step?

• DNA "unzips"

• DNA copies itself

• DNA adds amino acids

Multiple Choice

In the second step, base pairs match up. That means that guanine will always be paired with____.

• adinine

• guinine

• cytosine

• thymine

Multiple Choice

At the end of DNA replication, what will result?

• An RNA strand

• 2 identical copies of the original strand

• 2 backwards copies of DNA

Watch this video

https://www.youtube.com/watch?v=zdDkiRw1PdU&feature=emb_logo

Multiple Select

DNA replication is considered to be "semi-conservative" because it is made of ______ & ______.

• 1 original (old) strand

• 1 new strand

• 1 strand brought in from another cell

• 1 longer strand

Poll

How are you feeling about this topic?

• AWESOME! I totally get it!

• Good. But I need some practice.

• Okay. I need a little help to connect the dots.

• Terrible. I really didn't understand anything.

• I didn't pay attention today.