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Synthesis of nucleic acids always takes place in
The synthesis of nucleic acids, including DNA and RNA, always occurs in the 5' to 3' direction. This is because DNA polymerases and RNA polymerases add nucleotides to the 3' end of the growing chain.
DNA Chain initiation phase during replication is
During DNA replication, the initiation phase involves the formation of the replication fork. This is where the DNA double helix is unwound, allowing each strand to be copied.
What is called Griffith effect ?
The Griffith effect, also known as bacterial transformation, refers to the process where one strain of bacteria is changed by a gene or genes from another strain of bacteria. This was first demonstrated by Frederick Griffith in 1928.
Genetic information is carried by the long chain molecules which are made up of
Genetic information is carried by long chain molecules called nucleotides. These nucleotides form the structure of DNA and RNA, which store and transmit genetic information.
By which bonds the purine & pyrimidine pairs of Complementary Strands of DNA held together?
The purine and pyrimidine pairs of complementary strands of DNA are held together by hydrogen bonds (H-bonds). In DNA, adenine (a purine) pairs with thymine (a pyrimidine) with the help of 2 hydrogen bonds, and guanine (a purine) pairs with cytosine (a pyrimidine) with the help of 3 hydrogen bonds. This hydrogen bonding is crucial for the stability and specificity of the DNA double helix structure.
State the nature of the 2 Strands of DNA duplex.
The two strands of the DNA duplex are antiparallel and complementary. 'Antiparallel' means that the two strands run in opposite directions, which is essential for the base pairs to align properly and form hydrogen bonds. 'Complementary' means that each base on one strand pairs with a specific base on the opposite strand (A with T, and G with C).
The code AUG stands for
The code AUG is known as the start codon and it stands for the amino acid methionine. In the process of translation, AUG signals the start of protein synthesis and recruits the initiator tRNA carrying methionine to the ribosome.
A Sequence of three Consecutiue bases in a t- RNA molecule which Specifically binds to a complementary Codon Sequence in m - RNA is known as
An anticodon is a sequence of three bases in a tRNA molecule that is complementary to a codon sequence in mRNA. It allows the tRNA to bring the correct amino acid during protein synthesis by matching the codon on the mRNA sequence.
A Codon is made up of
A codon is a sequence of three nucleotides on an mRNA molecule that specifies a particular amino acid or a stop signal during protein synthesis. This is known as the triplet code.
The figure below illustrates the basic structure of a membrane. Use the figure to answer the question below
Which of the following molecules makes up the basic structure of a cell membrane?
Basic structure of a cell membrane is made up of a bilayer of phospholipids.
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