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guys is dna or sanger sequencing is coming help
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http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_s11_qp_11.pdf
can anyone explain q14, 25, 33 and 39 for me please?
23 A polypeptide has the amino acid sequence glycine – arginine – lysine – serine.
The table gives possible tRNA anticodons for each amino acid.
amino acid tRNA anticodons
arginine UCC GCG
glycine CCA CCU
lysine UUC UUU
serine AGG UCG
Which sequence of bases on DNA would code for the polypeptide?
A CCACGCAAGAGC
B CCTTCCTTCTCG
C GGAAGGAAAAGC
D GGTTGGTTGTGC
Hi everyone!! I would like to ask one question from the past year Paper 5. Here's the link, http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w11_qp_53.pdf
It is question no. 2, section (a), part (ii), about cross 3 and 4.
I attempted the question and referred to the mark scheme, here's the link for mark scheme, http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w11_ms_53.pdf
I could understand the part about cross 4, but when it says about "the idea of 1:1 ratio in each sex", I got startled. I tried the genetic diagram for both if the gene is sex-linked or non sex-linked, and the ratio of 'with tail' to 'without tail' I got is the same for both conditions (sex-linked or not).
So I need you guys to help figure it out. Thank you.
Look through the *biology p5 tips* thread.Can anyone help out for this past year question?
Notes for biodiversity plzz
Look through the *biology p5 tips* thread.
In the last few posts I remember someone had answered thos doubt
Where is it exactly? Could you bother to send me the link please? Thank you.
I could understand the part about cross 4, but when it says about "the idea of 1:1 ratio in each sex", I got startled. I tried the genetic diagram for both if the gene is sex-linked or non sex-linked, and the ratio of 'with tail' to 'without tail' I got is the same for both conditions (sex-linked or not).
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