Could anyone please tell me the different types of vegetative propagation? So you have tissue culture/micro propagation and reproductive cloning. Are there any more?
Could anyone please tell me the different types of vegetative propagation? So you have tissue culture/micro propagation and reproductive cloning. Are there any more?
veg prop is the growth of new structures on original ones (normally in plants etc)...they normally use the example of elms tree . I think the ones you mentioned are about artificial and natural cloning rather than vegetative prop
veg prop is the growth of new structures on original ones (normally in plants etc)...they normally use the example of elms tree . I think the ones you mentioned are about artificial and natural cloning rather than vegetative prop
Oh no wait I I think DNA helicase basically just unwinds the two polynucleotide stands and then the RNA polymerase break the hydrogen bonds between the nucleotide bases
I don't know! My book says RNA polymerase breaks hydrogen bonds
No that's incorrect, RNA polymerase simply catalyses the binding of nucleotides to their complementary bases. DNA helicase is involved in unwinding the double stranded DNA and breaking the hydrogen bonds.
No that's incorrect, RNA polymerase simply catalyses the binding of nucleotides to their complementary bases. DNA helicase is involved in unwinding the double stranded DNA and breaking the hydrogen bonds.
how long does it take to learn off by heart all the basic information of F214, I'm doing 10 hours a day
10 hours a day of purely biology f214?
It didn't take me long at all, and I wasn't doing nearly that many hours a day of f214...
F214 content is pretty simply, a lot of it is diagram based and processes. Make sure you know all of those, and you'll have the majority of marks under your belt
It didn't take me long at all, and I wasn't doing nearly that many hours a day of f214...
F214 content is pretty simply, a lot of it is diagram based and processes. Make sure you know all of those, and you'll have the majority of marks under your belt
yeh, revised last night from 9pm till 5am and pretty much covered about half of unit 4 will finish it off by today I think
The 'wolf' volcano has erupted in the Galapagos Islands today, what's the bets that OCR are gonna make next year's F215 paper pretty much based off this news and 75% of the paper will be based off that double paged spread in the textbook lol
You need both a dominant A allele and a dominant B allele to get the blue pigment. So Aabb would give you colourless but AaBb would give you blue. It's a lot like recessive epistasis but with recessive epistasis as long as you have a dominant allele for the first gene you get a colour.
You need both a dominant A allele and a dominant B allele to get the blue pigment. So Aabb would give you colourless but AaBb would give you blue. It's a lot like recessive epistasis but with recessive epistasis as long as you have a dominant allele for the first gene you get a colour.
You need both a dominant A allele and a dominant B allele to get the blue pigment. So Aabb would give you colourless but AaBb would give you blue. It's a lot like recessive epistasis but with recessive epistasis as long as you have a dominant allele for the first gene you get a colour.
Can you explain recessive and dominant epistasis please ?
Can you explain recessive and dominant epistasis please ?
Recessive epistasis is when you need a dominant allele of the epistatic first gene for the second hypostatic gene to be expressed. For example. Coat colour is controlled by the genes Z/z and G/g. For G/g gene to be expressed there must be a dominant allele for the Z/z gene.
Colourless compound --- Z/z ---> Grey ---G/g ---> Yellow. If there is no dominant Z then G/g cannot be expressed. ZzGg will produce yellow. zzGG will be colourless. ZZgg will be grey, 9:3:4 ratio
Dominant epistasis is essentially the opposite. You need a recessive allele is the first epistatic gene for the second hypostatic gene to be expressed. Against Z/z and G/g for coat colour.
Colourless compound --- Z/z ---> Grey ---G/g ---> Yellow. There needs to be a zz combination for the second gene to be expressed. zzGG will lead to yellow, zzgg will lead to Grey, ZzGG wil lead to colourless, ZZGG will be colourless. You need recessive homozygous in the first gene. 12:3:1 or 13:3 ratio