Question

DNA and RNA stuff asap help please

Answer 1

@iwanttogotostanford

Answer 2

AGATCCCTGGGA
Which of the following bottom strands of DNA is complementary to the strand shown above?

TCTAGGGACCCT
ACTAGGTACTCT
CGTAAGAACGCG
AGTAGGTACTCG

Answer 3

A <--> T
G <--> C

Answer 4

please tell me you're good :)

Answer 5

YYYEEESSSS

Answer 6

finally!

Answer 7

i dont get it

Answer 8

erm....okay so it looks like the first letter is A.

That makes the first letter of the new sequence T. since A-->C

Answer 9

yes

Answer 10

Yeah, and answer choice 1 is the one that fits it.

Answer 11

We can do the same for the 2nd letter.
G-->C

Answer 12

hm...

Answer 13

im reading this out of my textbook and dont under anything

Answer 14

So basically, when finding the 'complement' of DNA strands:

A becomes T
T becomes A
G becomes C
C becomes G

Answer 15

Got it?

Answer 16

@mhchen

Answer 17

im back sorry

Answer 18

how do i memorize that? wait can what you provided just 10 min ago be used on every question the test asks me?

Answer 19

Pointy goes with pointy. Round goes with round.

Answer 20

OOOH I GET IT!!!!!!!!!!!

Answer 21

Er, yeah, what he said.

Basically it looks like this:
http://leavingbio.net/HEREDITY-ORDINARY%20LEVEL_files/image061.gif

Answer 22

omg

Answer 23

yeah omg im like so stupid

Answer 24

i did a dna model not to long ago and my teacher told me to do this and i said i didnt read the book yet xD

Answer 25

I want to make a joke but I'm afraid some mod will catch me :b

Answer 26

go for it just delete it after

Answer 27

ahhh, I'm too tired though, not in a joking mood.

Answer 28

lol

Answer 29

I've seriously lost my humorous aspect from this site actually.

Answer 30

okay i got 1 more question or maybe 2 lol

Answer 31

Note, that only works when they ask you for complementary DNA also known as DNA replication. It will not work for transcription (DNA -> mRNA).

Answer 32

lol i feel you xD

Answer 33

Royal ranger will help u. I g2g, my eyes hurt.

Answer 34

okay bye!!!!

Answer 35

wait royal can you make an example of the DNA to mRNA

Answer 36

actually i got one in front of me right now

Answer 37

7. Given the strand of DNA, transcribe it into mRNA.

DNA – T A C G A C T A A C G T C A G T A G –
mRNA –

Answer 38

T --->
A --->
G --->
C --->

Answer 39

So basically what you want to do is the complementary strand. Then you are going to do another one, but this time, everywhere you see a (T), you put a (U)

Answer 40

Oh thats right since RNA doesnt got T it has urinal or something right ?

Answer 41

You can completely skip the first step, but if you do, you run the risk of messing up.

Answer 42

so mRNA - UTGCTG

Answer 43

thats what i got so far...

Answer 44

DNA - T A C...
Complementary: A T G...
mRNA - A U G

Answer 45

That's why i suggest you don't skip the middle step

Answer 46

im confused

Answer 47

then whats the middle step

Answer 48

Complementary DNA is the middle step.

Answer 49

Oh i did it wrong, lol, btw i didnt skip it i just memorized it incorrectly

Answer 50

im going to give my full answer in a moment just to make sure

Answer 51

okay i got it

Answer 52

i think i just memorized it correctly :)

Answer 53

7. Given the strand of DNA, transcribe it into mRNA.

DNA – T A C G A C T A A C G T C A G T A G –
mRNA-A U G C U G A U U G C U G U C A U C

Answer 54

Looks good. Now just don't confuse transcription with translation when they ask you.

Answer 55

OKAY CAN I ASK one more question sorry caps

Answer 56

Fire away

Answer 57

tRNA

Answer 58

whats that

Answer 59

actually how much time do you have?

Answer 60

because i can just give you the document and it would be alot easier

Answer 61

its a protein that reads the mRNA and chooses what proteins go where

Answer 62

yea just post it

Answer 63

wrong one

Answer 64

thats it

Answer 65

what question are you on?

Answer 66

none but lets start with 1 if you dont mind

Answer 67

or should i just ask the ones im not sure about first

Answer 68

yea

Answer 69

14

Answer 70

mRNA to Proteins is none as Translation

Answer 71

?

Answer 72

Do you have a table of which codons correspond to the amino acid coded for?

Answer 73

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=0ahUKEwjXqaPk8ujQAhVM62MKHTCzDxQQjRwIBw&url=http%3A%2F%2Fbiology.kenyon.edu%2Fcourses%2Fbiol114%2FChap05%2FChapter05.html&psig=AFQjCNFRnRdXmQEno6m0ciUulEtJRbYLmQ&ust=1481434244878920

Answer 74

im on that website i dont understand anything lol

Answer 75

Ok so what is the universal amino acid and corresponding codon that must be in place to begin translation?

Answer 76

dont know

Answer 77

AUG is the codon Methionine is the amino acid

Answer 78

Alright, so you are given the mRNA already. So now we must convert that into Protein. When making proteins, you always start at AUG. notice how it is the green one on the chart?

Answer 79

wait i think i have that table

Answer 80

Counting with respect to three nucleotides at a time find the first "AUG" sequence in question 14.

Answer 81

okay i found it

Answer 82

Ok that sequence sets the reading frame for translation of the protein.

Answer 83

reading frame?

Answer 84

What is the codon sequence that you read after "AUG"?

Answer 85

@ItryMath i really recommend reading your textbook

Answer 86

GAC

Answer 87

Ok so given its "GAC" what amino acid corresponds to GAC on the table that you are given

Answer 88

Well i think @sweetburger has this under control. I'll leave you to it, good luck.

Answer 89

C

Answer 90

what..

Answer 91

amino acid cytosine

Answer 92

or is it adenine

Answer 93

Wait cytosine and adenine are nitrogenous bases not amino acids

Answer 94

You know what proteins are composed of correct?

Answer 95

this is the table i see hold on

Answer 96

https://www3.beacon-center.org/wp-content/uploads/2013/07/Expanded_Genetic_Code.png

Answer 97

and how are you getting adenine or cytosine from this?