What does it mean when we say the genetic code is redundant group of answer choices?
Explain what it means to say that the genetic code is redundant and unambiguous. The genetic code is redundant (more than one codon may specify a particular amino acid) but not ambiguous; no codon specifies more than one amino acid.
What does it mean that DNA has built in redundancy?
Genetic redundancy is a term typically used to describe situations where a given biochemical function is redundantly encoded by two or more genes. In these cases, mutations (or defects) in one of these genes will have a smaller effect on the fitness of the organism than expected from the genes’ function.
What does it mean that the code is redundant and what useful purpose does such redundancy serve?
What does it mean that the code is redundant and what useful purpose does such redundancy serve? The genetic code is a matrix of 64 potential codons that can be generated by the four different bases. If a code is redundant, it allows more than one triplet pair code to code for a specific amino acid.
What is meant by the statement that the genetic code is redundant but not ambiguous?
AUG. Why is the genetic code said to be redundant but not ambiguous? Because there are codons that specify the same amino acids but none of them ever specify any other amino acid.
What determines proteins in a cell?
Most genes contain the information needed to make functional molecules called proteins. The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.
Why is the genetic code not ambiguous?
Most of the amino acids in the genetic code are encoded by at least two codons. Thus, there’s no ambiguity (uncertainty) in the genetic code. A particular codon in an mRNA will always be predictably translated into a particular amino acid or stop signal.
What does a gene code for?
Genetic code is the term we use for the way that the four bases of DNA–the A, C, G, and Ts–are strung together in a way that the cellular machinery, the ribosome, can read them and turn them into a protein. In the genetic code, each three nucleotides in a row count as a triplet and code for a single amino acid.
Is genetic code ambiguous?
The genetic code has redundancy but no ambiguity (see the codon tables below for the full correlation). For example, although codons GAA and GAG both specify glutamic acid (redundancy), neither specifies another amino acid (no ambiguity).
Why the genetic code is considered as Commaless?
Answer:Genetic code considered as commaless because it is continuous and non overlapping. Genetic code is continuous,commaless and non overlapping,Genetic code contain many codons that are arranged in a particular array to form open reading frame. The genetic code is read as a continuous base sequence .
What is genetic code and its properties?
The genetic code can be defined as the set of certain rules using which the living cells translate the information encoded within genetic material (DNA or mRNA sequences). The ribosomes are responsible to accomplish the process of translation.
Which is not a property of genetic code?
The code is non overlapping. After translation commences, any single ribonucleotide at a specific location within the mRNA is part of only one triplet. The genetic code is nearly universal meaning thereby that same code is used throughout all life forms. Exceptions exist though.
What is meant by a gene?
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases.
What is the difference between DNA and gene?
DNA. DNA is the molecule that is the hereditary material in all living cells. Genes are made of DNA, and so is the genome itself. A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism’s DNA.
Why is Gene?
A gene is a small section of DNA? that contains the instructions for a specific molecule, usually a protein?. The purpose of genes? is to store information. Each gene contains the information required to build specific proteins needed in an organism. The human genome? contains 20,687 protein-coding genes.
Why is it important that the DNA is copied before a cell divides?
Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
What comes first DNA or genes?
It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene. However, single-stranded RNA is rather unstable and is easily damaged by enzymes.
What is the relationship between DNA and a chromosome?
The chromosomes serve as the structure that holds the DNA. The DNA acts as a complete set of instructions that tells our bodies how to develop. Storing more data than any computer, each chromosome contains all the information needed to give you a base for your physical (and emotional) characteristics.
What is the relationship between DNA and proteins?
DNA carries the genetic information for making proteins. The four bases A, T, C and G make up the genetic code. The base sequence determines amino acid sequence in protein.
Is chromosome and DNA the same?
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Why is it important for DNA to condense into chromosomes?
During mitosis, the chromosomes condense so that each chromosome is a distinct unit. Prior to mitosis, the cell copies its DNA so that it contains two copies of each chromosome. Condensing the DNA into tightly packed chromosomes makes the process of chromosome alignment and separation during mitosis more efficient.
How does DNA code proteins?
DNA has the code for a protein which mRNA has to copy and then take that copy out of the nucleus to an other organelle called a ribosome. There the copy is translated into the protein. There are three types of RNA: mRNA, tRNA and rRNA. These amino acids are “added” one by one to form a protein.