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Biology 15 Online
hamidiso23:

What letter is the codon?

hamidiso23:

1 attachment
0mega:

1 attachment
hamidiso23:

@0mega wrote:
B

hamidiso23:

@extrinix

Extrinix:

Incorrect, a codon is a part of the mRNA that codes for it's opposite DNA.

Extrinix:

B is the mRNA itself.

hamidiso23:

D

Extrinix:

Incorrect, that is tRNA, what you are looking for is ON mRNA.

hamidiso23:

C

Extrinix:

That is pointing to the reaction between tRNA and an mRNA codon, known as translaton.

hamidiso23:

AB

Extrinix:

Wait wait wait wait.

hamidiso23:

mb

Extrinix:

I just realized there are 2 Bs...

hamidiso23:

yh

hamidiso23:

but they are the same thing I think

Extrinix:

Well, it's the bottom B.

hamidiso23:

there is no option for bottom b

Extrinix:

No, the top B is mRNA in itself, bottom B is pointing to a codon, it's weird.

hamidiso23:

ig if I just say b its right

Extrinix:

I guess.

hamidiso23:

What letter is the ribosome?

hamidiso23:

C

Extrinix:

Correct!

hamidiso23:

yay

hamidiso23:

What letter is the mRNA?

Extrinix:

Guess

hamidiso23:

B or AB

Extrinix:

waittttt

Extrinix:

No, AB is the codon yea, I just noticed the bracket.

Extrinix:

So, B is pointing to just mRNA alone.

hamidiso23:

so AB is the codon

Extrinix:

Yeah.

hamidiso23:

B

hamidiso23:

is mrna

Extrinix:

Yeah.

hamidiso23:

What letter is the tRNA?

hamidiso23:

B

Extrinix:

We identified tRNA earlier, it contains an anticodon, the opposite to the codon.

hamidiso23:

D

hamidiso23:

CD

hamidiso23:

D

Extrinix:

@hamidiso23 wrote:
D
correct

hamidiso23:

What letter is the anti-codon?

hamidiso23:

CD

Extrinix:

tRNA contains the anticodon, so what do you think?

Extrinix:

Correct!

hamidiso23:

big brain

Extrinix:

Lol.

hamidiso23:

What letter are the amino acids?

hamidiso23:

AC

Extrinix:

Correct!

hamidiso23:

The RNA sequence GAA codes for which amino acid?

hamidiso23:

1 attachment
hamidiso23:

a. glutamic acid b. lysine c. valine

hamidiso23:

A right

Extrinix:

Correct!

hamidiso23:

lets go

hamidiso23:

f the DNA strand was GCA, what would be the amino acid coded for by the mRNA?

hamidiso23:

If

hamidiso23:

a. proline b. lysine c. arginine

hamidiso23:

B

hamidiso23:

@0mega wrote:
B

Extrinix:

Incorrect.

hamidiso23:

mb C

Extrinix:

Get their opposites: A = U G = C

Extrinix:

Correct!

hamidiso23:

C

hamidiso23:

is correct

Extrinix:

Yeah.

hamidiso23:

What is the function of transfer (t)RNA?

hamidiso23:

a. To convert the deoxyribose sugar on DNA to ribose to be incorporated in RNA b. To transfer genetic information from the nucleus of the cytosol to other eukaryotic cells c. To bind to specific amino acids and facilitate peptide bond formation

Extrinix:

What do you think?

hamidiso23:

not A fs

Extrinix:

Okay.

hamidiso23:

B

Extrinix:

Incorrect, it would be C because tRNA connects it's anticodons with the codons to form proteins using the amino acids.

hamidiso23:

oh C

hamidiso23:

tnx

Extrinix:

You're welcome.

hamidiso23:

u a girl

Extrinix:

I'm a guy, but I'm a GenFlu.

hamidiso23:

@extrinix wrote:
I'm a guy, but I'm a GenFlu.
mb

Extrinix:

I didn't notice. xD

hamidiso23:

@563blackghost

hamidiso23:

What type of mutation is shown?

hamidiso23:

A. Inversion B. Deletion C. Duplication

hamidiso23:

1 attachment
hamidiso23:

@smokeybrown

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