Table of Contents
What is A nucleotide sequence in DNA that codes for A specific trait?
Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual.
What is messenger RNA matched with?
Transcription: DNA to mRNA DNA and RNA bases are also held together by chemical bonds and have specific base pairing rules. In DNA/RNA base pairing, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G).
Are genes nucleotides?
A DNA molecule is a twisted ladder-like stack of building blocks called nucleotides. A gene is a distinct stretch of DNA that determines something about who you are. (More on that later.) Genes vary in size, from just a few thousand pairs of nucleotides (or “base pairs”) to over two million base pairs.
What is the complementary strand to the DNA sequence Tagtca?
Genes & DNA – What does DNA look like?
| Question | Answer |
|---|---|
| What is the complementary strand to the DNA sequence TAGTCA? | ATCAGT |
| Along with a sugar and a phosphate, what is the third part of a nucleotide? | a base |
| What is the first step of DNA replication? | a strand of DNA splits down the middle |
What is a codon sequence?
A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. DNA and RNA molecules are written in a language of four nucleotides; meanwhile, the language of proteins includes 20 amino acids.
What does thymine pair with in RNA?
Figure 3: DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow). When this base-pairing happens, RNA uses uracil (yellow) instead of thymine to pair with adenine (green) in the DNA template below. Interestingly, this base substitution is not the only difference between DNA and RNA.
Are nucleotides Nucleic Acids?
A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
How nucleotides are formed?
Nucleotides are the monomeric units of nucleic acids. A nucleotide is formed from a carbohydrate residue connected to a heterocyclic base by a β-D-glycosidic bond and to a phosphate group at C-5′ (compounds containing the phosphate group at C-3′ are also known).
What is nucleotides in genetics?
Definition. A nucleotide is one of the structural components, or building blocks, of DNA and RNA. A nucleotide consists of a base (one of four chemicals: adenine, thymine, guanine, and cytosine) plus a molecule of sugar and one of phosphoric acid.
What are complementary strands?
Complementary strands. (Science: molecular biology) two single strands of dna in which the nucleotide Sequence is such that they will bind as a result of base pairing throughout their full length.