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2021-06-17

What is the complementary strand of this sequence 5 Gattaca 3?

What is the complementary strand of this sequence 5 Gattaca 3?

For the sequence 5′-GATTACA-3′, the complementary DNA strand would be 3′-CTAATGT-5′.

How do you do complementary base pairing?

Chargaff’s rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa. However, A doesn’t pair with C, despite that being a purine and a pyrimidine.

What is the reverse complement of a DNA sequence?

A DNA sequence contains only the letters A, C, G and T. The reverse complement of a DNA sequence is formed by reversing the letters, interchanging A and T and interchanging C and G. Thus the reverse complement of ACCTGAG is CTCAGGT.

What are strands of DNA made of?

The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), and thymine (T).

How are the two strands of DNA held together?

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

When DNA makes a copy of itself it is called?

DNA replication is the process by which DNA makes a copy of itself during cell division. The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA? molecule.

Which model of DNA replication is accepted?

The semi-conservative model is the intuitively appealing model, because separation of the two strands provides two templates, each of which carries all the information of the original molecule. It also turns out to be the correct one (Meselson & Stahl 1958).

What is the Semiconservative method of DNA replication?

As the DNA double helix is unwound by helicase, replication occurs separately on each template strand in antiparallel directions. This process is known as semi-conservative replication because two copies of the original DNA molecule are produced. Each copy contains one original strand and one newly-synthesized strand.