HSC Stuff > HSC Biology

HSC Biology Question Thread

<< < (278/284) > >>

Coolmate:

--- Quote from: Annasimon on June 04, 2020, 06:10:36 pm ---Would the answer for this question be d??

Which of the following best describes a gene?
A a single DNA molecule wound around proteins
B one leg of a pair of blue denim pants
C an allele that exists in 2 or more forms
D. A sequence of DNA nucleotides that encode a protein
Thanks!

--- End quote ---

I would say the answer to this question is "D".

Because:
Genes are made up of sequences of DNA nucleotides and these genes encode for proteins which control cell function. Thus, I would say "D" is the answer as it sounds most correct.

Hope this helps,
Coolmate 8)

Annasimon:
Sorry for all the questions...

How would you explain the relationship between the circulatory and respiratory systems?
They both work together to maintain homeostasis ..?

Chocolatepistachio:
hello, i have a question
which organisms undergo mitosis without cytokinesis following and why would cells which undergo mitosis and not cytokinesis have 1 cell and 2 nuclei?


Thanks

kauac:

--- Quote from: Annasimon on June 04, 2020, 11:25:49 pm ---Sorry for all the questions...

How would you explain the relationship between the circulatory and respiratory systems?
They both work together to maintain homeostasis ..?

--- End quote ---

Hi, I think that's a great way of explaining it!

You can talk specifically about the homeostasis mechanisms they are involved. e.g. balance of O2 and CO2.

You could even say that they are codependent on each other - because the circulatory system provides O2 rich blood to the lungs and respiratory muscles, and the lungs provide an oyxgen supply for the heart muscle to stay healthy.  :)

Chocolatepistachio:

--- Quote from: Chocolatepistachio on June 04, 2020, 05:37:16 pm ---Hello for this multiple choice question is the answer c?

Some living cells were maintained in a culture medium under aerobic conditions. They were supplied with glucose labelled with radioactive carbon-14? Which of the following is likely to be true

A carbon14 atoms would be found in NADH
B carbon 14 atoms would be found in atp
C carbon 14 atoms would be found in carbon dioxide produced by the cells
D Carbon 14 atoms would be found in pyruvate

Thanks

--- End quote ---

Pls can someone help me with this question

Navigation

[0] Message Index

[#] Next page

[*] Previous page