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Biology-Related Homework Help General Biology Topic started by: ekristaa on Jun 11, 2013



Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: ekristaa on Jun 11, 2013
Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the cytoplasm to ribosomes situated on the endoplasmic reticulum. The triplet codons are read from mRNA as it passes through the ribosome. The function of tRNA is like that of a wheelbarrow as it brings the correct
amino acid to the work site at the ribosome for protein synthesis.

Complete the following blanks with the correct terms.


A tRNA (UGA) carries as its load, only the amino acid called _ 1  . It plugs into the ribosome because its _ 2  , (UGA), matches the mRNA codon   3   (letters).
A different tRNA (GGG) carries only the amino acid   4   and its   5  , (GGG), which allows it to match the mRNA codon   6  .
Another tRNA (CUU) carries the amino acid   7_  and its anticodon (CUU), which allows it to match the mRNA codon   8 _.
Note: Each of these three lines have a similar type of answer for each location. Use this information to help you fill in the answer. For example, The last blank for each line is going to be a three letter code. 4 marks


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: bbb on Jun 11, 2013
Another tRNA (CUU) carries the amino acid   7_  and its anticodon (CUU), which allows it to match the mRNA codon   8 _.

7 -- Glutamic acid

8 -- CUU


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: ekristaa on Jun 11, 2013
could anybody help me with the rest please ?


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: bbb on Jun 11, 2013
A different tRNA (GGG) carries only the amino acid   4   and its   5  , (GGG), which allows it to match the mRNA codon   6  .

4 -- Proline

5 -- Anticodon

6 -- Proline

(http://www.nature.com/scitable/nated/content/42614/pierce_15_10_MID_1.jpg)


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: ekristaa on Jun 11, 2013
thank you ! I am still a little bit confused could you explain a bit with the first 3


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: barry on Jun 11, 2013
A tRNA (UGA) carries as its load, only the amino acid called _ 1  . It plugs into the ribosome because its _ 2  , (UGA), matches the mRNA codon   3   (letters).

You sure that was written correctly? Pls double check.


Title: Messenger RNA (mRNA) is a single-stranded molecule that passes through nuclear pores into the ...
Post by: ekristaa on Jun 11, 2013
It is worded weird
This is copied & pasted

A tRNA (UGA) carries as its load, only the amino acid called _ 1  . It plugs into the ribosome because its _ 2  , (UGA), matches the mRNA codon _3_  (letters).