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At the end of prophase, the DNA has replicated itself by semi-conservative replication. So there're 92 DNA molecules at that time (46 * 2 = 92). However at telophase, the Cells have divided, each having 46 dna molecules.View attachment 59500
and this too..the answer is D. How on earth?
Can you please post the complete question?View attachment 59499
Why is the answer B? How do I calculate this?
oh yeah sorry...just wait a secCan you please post the complete question?
The first sterile hybrid is made by meiosis. So the no. of chromosomes in this hybrid will be 14. Due to mutation, this number gets doubled, so now the fertile hybrid 1 will have 28 chromosomes. Now when this fertile hybrid 1 is crossed with a another grass having the chromosome no. 14, the resulting offspring will have 21 chromosomes (7 from the grass, and 14 from the fertile hybrid one). Again, due to mutation this sterile hybird formed have its chromosome no. double, so the next fertile hybrid 2 will have 42 chromosomes (21 * 2 = 42)
Thank you!The first sterile hybrid is made by meiosis. So the no. of chromosomes in this hybrid will be 14. Due to mutation, this number gets doubled, so now the fertile hybrid 1 will have 28 chromosomes. Now when this fertile hybrid 1 is crossed with a another grass having the chromosome no. 14, the resulting offspring will have 21 chromosomes (7 from the grass, and 14 from the fertile hybrid one). Again, due to mutation this sterile hybird formed have its chromosome no. double, so the next fertile hybrid 2 will have 42 chromosomes (21 * 2 = 42)
See you're given the mRNA code and you need to get the tRNA code for each.
yes please solve...would be gratefulSee you're given the mRNA code and you need to get the tRNA code for each.
You cant get that by following teh complementary base pairing rule.
You will that UGC isn't there.So D.
Get it? If you don't I'll solve it.
Okay.yes please solve...would be grateful
oh good!Okay.
Going in order.
glu- CUU CUC
pro-GGA GGG
thr-UGA UGG
val- CAU CAC
A is CAU.
B is CUU.
C is UGA.
Di is UGC.So D.
Okay?
Don't worry. This happens. You will improve with every paper. Just keep up the practice.oh good!
I just solved my first paper of Biology today, a Paper 1 and scored 22 out of 40, just feeling so down! any suggestions? should I revise the stuff again?
Good.oh good!
I just solved my first paper of Biology today, a Paper 1 and scored 22 out of 40, just feeling so down! any suggestions? should I revise the stuff again?
thank you!Don't worry. This happens. You will improve with every paper. Just keep up the practice.
You should continue.thank you!
should I continue solving papers then? do the questions get repeated?
Yes they do, sometimes. But even if they don't, the pattern on which they are asked remains the same. But you should be prepared for any new question which may come; you should treat every question as a new one. Just keep practicing, you'll get better by time. When I started doing them, I also used to get marks like 29, 32 etc. But now I have improved a lot, and now alhamdolillah most of the times i get 40/40.thank you!
should I continue solving papers then? do the questions get repeated?
Alhamdulillah.Yes they do, sometimes. But even if they don't, the pattern on which they are asked remains the same. But you should be prepared for any new question which may come; you should treat every question as a new one. Just keep practicing, you'll get better by time. When I started doing them, I also used to get marks like 29, 32 etc. But now I have improved a lot, and now alhamdolillah most of the times i get 40/40.
Yes they do, sometimes. But even if they don't, the pattern on which they are asked remains the same. But you should be prepared for any new question which may come; you should treat every question as a new one. Just keep practicing, you'll get better by time. When I started doing them, I also used to get marks like 29, 32 etc. But now I have improved a lot, and now alhamdolillah most of the times i get 40/40.
thank you both of you! I feel a lot better now!You should continue.
Yes,there are always question that are repeated.
Just one thing I wanted to say.That if you like maybe you can solve topicals after revising topics.That way you can get a hint for which topic you need to focus on more.
Welcomethank you both of you! I feel a lot better now!
Rizwan Javed
and wow 40/40 is a lot! yeah that's what I am aiming for as well! you took AS already or will you take in May/June?
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