Can yhu please help me out?

. Which statement describes a step in DNA replication? (Points: 3)


New bases are built by the original strands.





The paired bases release many types of proteins.





The double helix unwinds and each strand forms a template for a new strand.





The DNA is cut into pieces using polymerase enzymes.











5. According the base-pairing rules for DNA replication, which set of bases would never bond together? (Points: 3)


A and T





T and G





C and G











6. Where does protein-building begin? (Points: 3)


on the cytoskeleton





on an enzyme





on the cell membrane





on a DNA strand











7. Which process is part of protein synthesis and includes tRNA? (Points: 3)


transcription





translation





mitosis





replication





8Which pathway correctly represents protein synthesis?


DNA to proteins to RNA





RNA to

Can yhu please help me out?
. Which statement describes a step in DNA replication? (Points: 3)


The double helix unwinds and each strand forms a template for a new strand.


--DNA helicase "unzips" the DNA ladder. DNA polymerase then comes in and adds the matching bases to each half of the newly unzipped ladder, using the unzipped halves as templates and making new matching halves. you now have two "new" copies of DNA. (old DNA is ALWAYS used as a template for new bases to be added to.)





5. According the base-pairing rules for DNA replication, which set of bases would never bond together? (Points: 3)


T and G


--the rules of DNA base-pairing are A with T, and G with C. think of it as a puzzle--T and G pieces just don't fit together.





6. Where does protein-building begin? (Points: 3)


on a DNA strand


--protein building starts with the same process as DNA replication does -- DNA helicase comes in and unzips a small portion of the ladder (where the protein info, or gene, is located). from there RNA polymerase comes in to add RNA bases to make mRNA to take out of the nucleus and to a ribosome in the cytoplasm for translation to occur. (the DNA is like a reference book at the library--you can look at it all you want when you need to, but it can never leave the library (the nucleus is the library in this case)).





7. Which process is part of protein synthesis and includes tRNA? (Points: 3)


translation


--while both transcription and translation are part of protein synthesis, only translation is what the question is referring to (although since both start with t, it can be confusing). in translation, the mRNA that was copied from DNA in the nucleus is out in the cytoplasm of the cell. it finds a ribosome and that's were translation actually occurs. the tRNA carries amino acids in to match up to the 3-base codon sequences of the mRNA. every 3 bases codes for a new amino acid, which the tRNA brings in and puts in place with the help of the ribosome (which just keeps things going in the right order, all nice and neat).





8. Which pathway correctly represents protein synthesis?


--you didn't finish putting up the answers for this question, but the correct answer is


DNA to RNA to proteins.


--again, the DNA is in the nucleus, is copied into mRNA form, which is then taken to a ribosome in the nucleus for translation using tRNA, where it finally becomes a protein.


this is actually the "central dogma of biology"


DNA --%26gt; RNA --%26gt; protein.





hope this helps!
Reply:New bases are built by the original strands


A and T


on the cell membrane


mitosis


DNA to proteins to RNA


hope this help
Reply:uummmmm...


D_N_A...





thats blood ryte??





yeah..


sowwiee...





dont know much on DNA
Reply:The double helix unwinds and each strand forms a template for a new strand.





T and G





on an enzyme





transcription

roses