swag_sxc_boi's Bio 3/4 question thread

[SocialRhubarb]

http://www.dnalc.org/resources/animations/pcr.html

Try this site, I thought it was a pretty good animation.

[swagsxcboi]

http://www.dnalc.org/resources/animations/pcr.html

Try this site, I thought it was a pretty good animation.

Cheers man, just wondering with the primer, is it a DNA primer or RNA primer or?

[Yuki N.]

dna primers are used in PCR cuz they don't need to be replaced 

[Yacoubb]

Cheers man, just wondering with the primer, is it a DNA primer or RNA primer or?

A primer is a synthetic, single strand of DNA that can be made up of up to 25 DNA or RNA nucleotides.

[simpak]

A primer is a synthetic, single strand of DNA that can be made up of up to 25 DNA or RNA nucleotides.

that definition doesn't make sense.

[Yacoubb]

that definition doesn't make sense.

Which part of it doesn't make sense?

A primer is a synthetic, single strand of up to 25 nucleotides.

^Is that better?

[vox nihili]

Which part of it doesn't make sense?

A primer is a synthetic, single strand of up to 25 nucleotides.

^Is that better?

You said the strand could be made up of DNA or RNA nucleotides, but the strand itself was DNA. I have a feeling that's where he's suggesting it doesn't make sense.

[simpak]

Yeah you said it was a strand of DNA but that it could be made of either DNA or RNA!
She* also!

[Yacoubb]

Yeah you said it was a strand of DNA but that it could be made of either DNA or RNA!
She* also!

LOL oops I just realised that. Could I have said a synthetic, single stranded nucleic acid made up of up to 25 DNA or RNA nucleotides?

[simpak]

Sure that's fine.

[vox nihili]

She* also!

Whoops sorry!

[simpak]

Lmfao that's okay :3

[swagsxcboi]

Which part of it doesn't make sense?

A primer is a synthetic, single strand of up to 25 nucleotides.

^Is that better?

Yeah I understand that, I was just making sure whether it was RNA or DNA in PCR.

[swagsxcboi]

How would I define genotype?
In Mendel's law of segregation, what does it mean by 'a gene can exist in more than one form'

[Yacoubb]

How would I define genotype?
In Mendel's law of segregation, what does it mean by 'a gene can exist in more than one form'

Genotype is the set of alleles present within a cell that code for particular traits.

Alleles are different forms or variants of a particular gene. So the fact that a gene can exist in more than one form alludes to alleles.