Biology Predictions/Thoughts (1 Viewer)

[Masaken]

ur mum

nahhhh that was so unsolicited

 

[goodcat911]

do more now
look at me speaking i only did one btw which is the 2022 one
and their paper is so ez so I feel like the nesa gods are gonna be hard on us this year
crossing fingers for 40%, 30%, 20%, 10% ----> mod 6, mod 7, mod 5 and mod 8 for tomorrow 's paper

idc what they put as long as its some cross-module stuff to spice things up

 

[SadCeliac]

GENE FLOW - natural movement of alleles through the gene pool of a population
GENETIC DRIFT - random chance events that influence the gene pool (has a larger effect on small populations) - E.g., a group of birds migrates to an island but then a storm happens and then get stuck on the island to start a new population (founders effect - they've drastically decreased the gene pool and represent a minority of the initial population)
BIOTECH - literally any tool that we use that utilises living organisms - usually for agriculture or industry (artificial pollination, artificial insemination, selective breeding, SCNT cloning, BT cotton, Golden Rice, Gene cloning via recombinant plasmids, vaccines, etc etc)
Usually a question will ask how a named biotech will influence the biodiversity of a population: to answer this we talk about how (for example) by using artificial insemination to breed two cows that are on opposite sides of the farm, biodiversity is initially increased, because new alleles are being combined and bred to increase gene flow. However, if the same cow's gametes are used to inseminate an entire population, biodiversity drastically decreases because the gene pool is being over saturated with one specific set of alleles, and the offspring population may be more succeptable to being wiped out by a single selection pressure (as they have a common set of genes)

HOPE THAT HELPS also people correct me if I'm wrong or made any slight errors or I can fix my responses

wait guys am I right is this correct

 

[SASH_06_X]

wait guys am I right is this correct

isn't gene flow the introduction of genetic material from one population of species to another?? Or idk maybe your definition is another way to put it
yea so that's about the only question i have about your explanation, otherwise they all match mine so yeah can't find any errors

 

[synthesisFR]

2022 was such a good exam like i loved it so much

Stfu. That shit traumatised me I didn’t even know how to assess validity of that stupid study and half the exam was just comparing stuff and that last q I forgot what the whole thing was I just waffled to save my life because I was a dropkick in year 11 and didn’t prepare enough.

 

[modgrinder]

What would you say for the significance of mutation in non-coding DNA?

 

[hungreypotter]

is it possible for them to ask questions on the types of epidemiological studies like analytical and descriptive ones or would they just ask us to analyse one?

 

[Unovan]

GENE FLOW - natural movement of alleles through the gene pool of a population
GENETIC DRIFT - random chance events that influence the gene pool (has a larger effect on small populations) - E.g., a group of birds migrates to an island but then a storm happens and then get stuck on the island to start a new population (founders effect - they've drastically decreased the gene pool and represent a minority of the initial population)
BIOTECH - literally any tool that we use that utilises living organisms - usually for agriculture or industry (artificial pollination, artificial insemination, selective breeding, SCNT cloning, BT cotton, Golden Rice, Gene cloning via recombinant plasmids, vaccines, etc etc)
Usually a question will ask how a named biotech will influence the biodiversity of a population: to answer this we talk about how (for example) by using artificial insemination to breed two cows that are on opposite sides of the farm, biodiversity is initially increased, because new alleles are being combined and bred to increase gene flow. However, if the same cow's gametes are used to inseminate an entire population, biodiversity drastically decreases because the gene pool is being over saturated with one specific set of alleles, and the offspring population may be more succeptable to being wiped out by a single selection pressure (as they have a common set of genes)

HOPE THAT HELPS also people correct me if I'm wrong or made any slight errors or I can fix my responses

gene flow is genetic material moving through different populations

gene flow basically = migration, but can also arise from things like pollination and biotechnology

 

[nsw..wollongong]

do we need to know about gel electrophoresis

 

[Unovan]

do we need to know about gel electrophoresis

yh but not that deeply, probably just need to know that it separates dna fragments by mass and be able to interpret a readout

 

[Unovan]

is it possible for them to ask questions on the types of epidemiological studies like analytical and descriptive ones or would they just ask us to analyse one?

yes they can ask anything on epidemiology, I've seen a past question that was literally

"Define epidemiology" (5 Marks)

 

[nsw..wollongong]

yes they can ask anything on epidemiology, I've seen a past question that was literally

"Define epidemiology" (5 Marks)

no.

 

[Unovan]

What would you say for the significance of mutation in non-coding DNA?

So first of all mention that it is not as significant as coding dna sequences because it does not code for a protein and hence does not directly influecne phenotypic expression. Then go into the actual significance, which is basically just that non coding regions regulate gene expression and if there is a mutation, the wrong DNA may be translated which would impact the phenotype of the mutated individual

 

[hungreypotter]

yes they can ask anything on epidemiology, I've seen a past question that was literally

"Define epidemiology" (5 Marks)

aint no way bye-

 

[synthesisFR]

Guys your exam is tomorrow

 

[SadCeliac]

Guys your exam is tomorrow

And what did you get last year

 

[nsw..wollongong]

"The development of internal fertilisation was essential for complex animals to move onto land." Roach 2021
Justify this statement with reference to named examples of internal and external fertilisers.

excuse me but what the flip, would a human be counted as a fertiliser im so confused

 

[nsw..wollongong]

Guys your exam is tomorrow

howd u go in English paper 2 again??

 

[goodcat911]

Stfu. That shit traumatised me I didn’t even know how to assess validity of that stupid study and half the exam was just comparing stuff and that last q I forgot what the whole thing was I just waffled to save my life because I was a dropkick in year 11 and didn’t prepare enough.

man put the L in accel

 

[nsw..wollongong]

wait guys i thought viruses where non-cellular, why is this wrong