54595 | Revisions

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication?

		1. There is no need. Methylation is epigenetic. New methyl groups are added as needed depending on the environmental context.
		2. It isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.
		3. Methyltransferases read the old strand and operate on the new strand.
		4. Since the methyl groups alter base-pairing, only correctly methylated bases will be used during DNA synthesis.

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication?

		1. There is no need. Methylation is epigenetic. New methyl groups are added as needed depending on the environmental context.
		2. It isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.
		3. Methyltransferases read the old strand and operate on the new strand.
		4. Since the methyl groups alter base-pairing, only correctly methylated bases will be used during DNA synthesis.

נערך Nov 15 '20 - 07:52 Ayelet Shelach

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication?צמל

14. ~~There~~ Sis n~~o n~~ce thed. Mmethyl groups alt~~ion~~er ibas e-pairinge, on~~etic.~~ly Ncorrewctly methyl ~~groups~~ a~~re add~~ted bas nes will bed used d~~epend~~uring oDNA syn the ~~env~~si~~ronmental context~~s.

נערך Nov 15 '20 - 08:07 Ayelet Shelach

צמל(USMLoid) During genome replication, hydrogen-bonding between the two DNA strands is broken and the strands separated from each other. Which of the following is responsible? Select one:

		~~4. Since the meth~~Gy~~l g~~r~~oups alter b~~ase~~-pairing, only correctly methylated bases will be used during DNA synthesis.~~
		Helicase
		Single-stranded DNA binding proteins
		DNA polymerase
		No enzyme is responsible.
		Primase

נערך Nov 15 '20 - 08:08 Ayelet Shelach

(USMLoid)me bases During genomeDNA arepli occatsion,ally methydroglaten-bond, typically C ing beukaryotween thes twoand DNA stin prokandryotes. This bprokvides an additional ‘code’ to the stinformationds separatored frin DNA. Homw eachis other. Whichs cofde mainthained followduring isDNA resplicationsible? Select one:

GIt isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.

HMethylictransferases read the old strand and operate on the new strand.

SThere is nglo ne-ed. Methylation is epigenetic. New methyl groups anre added ~~DNA~~as bineeded depending pron the environsmental context.

~~DNA~~Since the methyl groups alter base-pairing, only correctly methylated bases will be used duraing DNA synthesisSelect one:

No enzyme is responsible.

Primase

נערך Nov 15 '20 - 08:09 Ayelet Shelach

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication? Select one:

		It isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.
		Methyltransferases read the old strand and operate on the new strand.
		There is no need. Methylation is epigenetic. New methyl groups are added as needed depending on the environmental context.
		Since the methyl groups alter base-pairing, only correctly methylated bases will be used during DNA synthesisSelect one:
		No enzyme is responsible.
		Primase

נערך Nov 15 '20 - 08:16 Ayelet Shelach

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication? Select one:

		It isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.
		Methyltransferases read the old strand and operate on the new strand.
		There is no need. Methylation is epigenetic. New methyl groups are added as needed depending on the environmental context.
		Since the methyl groups alter base-pairing, only correctly methylated bases will be used during DNA synthesisSelect one:

נערך Nov 15 '20 - 17:09 Ayelet Shelach

Some bases in DNA are occasionally methylated, typically C in eukaryotes and A in prokaryotes. This provides an additional ‘code’ to the information stored in DNA. How is this code maintained during DNA replication? Select one:

		It isn’t. The RNA polymerase holoenzyme has a demethylase activity. The methylation code is reset during DNA replication.
		Methyltransferases read the old strand and operate on the new strand.
		There is no need. Methylation is epigenetic. New methyl groups are added as needed depending on the environmental context.
		Since the methyl groups alter base-pairing, only correctly methylated bases will be used during DNA synthesisSelect one:

נערך Nov 15 '20 - 20:29 Ayelet Shelach