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What unzips the DNA molecule so it can replicate?
Enzymes called helicases are responsible for unwinding and unzipping the DNA double helix during replication. These enzymes break the hydrogen bonds between the base pairs, allowing the two strands to separate and serve as templates for the synthesis of new DNA strands.
Are AT base pairs or GC base pairs more stable?
GC base pairs are more stable than AT base pairs because they have three hydrogen bonds holding them together, while AT base pairs have only two hydrogen bonds. This extra bond in GC pairs makes them stronger and more difficult to break apart.
What causes the base pairs in DNA to break apart?
Base pairs in DNA can break apart due to exposure to high temperatures, radiation, or certain chemicals that can damage the bonds holding the bases together. This can lead to mutations or errors in DNA replication.
Does helicase enzymes break the sugar phosphate backbone?
No, helicase enzymes unwind and separate the double-stranded DNA helix by breaking the hydrogen bonds between complementary nucleotide base pairs. They do not break the sugar-phosphate backbone of the DNA molecule.
What pairs with what in base pairing?
Cytosine pairs with Guanine Adenine Pairs with Thymine
What stage of mitosis appears to have no nucleus instead highly coiled thread like objects that occur in pairs where the nucleus should be?
This stage of the Cell cycle is known as M-Phase - m for mitosis.
How many pairs of shoes were on the Titanic?
This would be difficult to determine, as not only there were shoes worn by passengers and crew, there were also pairs of shoes that may have been stored in their luggage.
What unzips the DNA molecule so it can replicate?
Enzymes called helicases are responsible for unwinding and unzipping the DNA double helix during replication. These enzymes break the hydrogen bonds between the base pairs, allowing the two strands to separate and serve as templates for the synthesis of new DNA strands.
What organic substance is a nucleosome composed of?
Nucleosomes are the basic repeating units of chromatin which is a combination of DNA and proteins that make up the content's of a cell's nucleus. Nucleosomes are made of a histone octamer which is comprised of two of the following histones: H2A, H2B, H3, and H4. The histone octamer is bound and wrapped around approximately 146 base pairs of DNA and an additional H1 histone is added and is wrapped around 20 more base pairs.
Are AT base pairs or GC base pairs more stable?
GC base pairs are more stable than AT base pairs because they have three hydrogen bonds holding them together, while AT base pairs have only two hydrogen bonds. This extra bond in GC pairs makes them stronger and more difficult to break apart.
What are enzymes that open up the double helix by breaking the hydrogen bonds that like complementary bases?
Helicases are enzymes that unwind the DNA double helix by breaking the hydrogen bonds between complementary base pairs. These enzymes play a crucial role in processes like DNA replication, transcription, and repair by separating the two strands of DNA.
Is biology related to chemistry?
Most biological processes are chemical in nature. Eg. Enzymes form bonds with substrates, and catalyse reactions. DNA is stabilised by many interactions, such as H-bonding between complementary base pairs, and hydrophobic interactions between successive base pairs.
Find 2 pairs of numbers with the given number as their LCM?
This will be difficult to answer accurately if we don't know the given number, so we'll make one up. 36. Two pairs of numbers with an LCM of 36 are 4,9 and 12,18.
What causes the base pairs in DNA to break apart?
Base pairs in DNA can break apart due to exposure to high temperatures, radiation, or certain chemicals that can damage the bonds holding the bases together. This can lead to mutations or errors in DNA replication.
What is the shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases?
The shape of a DNA molecule formed by two twisted strands coiled into a springlike structure and held by hydrogen bonds is called a double helix. The two strands run in opposite directions and are connected by complementary base pairs (adenine-thymine, guanine-cytosine). This structure allows for the genetic information to be stored and replicated accurately.
How do different restriction enzymes produce different DNA fragments from the DNA molecule?
DNA from two different people may have different sequences in the non-coding regions of their DNA. These differences may result in one person having a particular restriction site and the other person not having it. Different numbers and types of restriction sites will cause different fragments to be produced.
Are factor pairs ever repeated across pairs?
Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
