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How many genes are there for the four polypeptides in haemoglobin?
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Different between DNA and polypeptide?
DNA is divided into functional units called genes. A gene(def) is a segment of DNA that codes for a functional product (mRNA, tRNA, or rRNA). Since the vast majority of genes are transcribed into mRNA and mRNA is subsequently translated into polypeptides or proteins, most genes code for protein synthesis. The term polypeptide (def) refers to many amino acids (def) connected by peptide bonds (def). While all proteins are polypeptides, not all polypeptides are proteins. In some cases, smaller polypeptides coded for by two or more genes must be joined together to produce a functional protein. In other cases, as will be mentioned below, mRNA carries a transcript of several genes resulting in the synthesis of a large polypeptide that must subsequently be cleaved by enzymes called proteases into two or more smaller functional proteins. For simplicity, we will use the term proteinwhen referring to the end product of transcription and translation.-sudarvizhi prashanth
A molecule of hemoglobin can hold how many molecules of oxygen in the blood transport?
Four heme groups, so I think four molecules of oxygen can be transported by one molecule of haemoglobin.
How many times is haemoglobin heavier than helium?
about 4 times
What is closely related to proteins?
Many things are closely related to proteins, including polypeptides and amino acids.
Why hemoglobin is better long distance oxygen transporter than myoglobin?
Both Myoglobin and Haemoglobin binds to oxygen, but they differ in many aspects. Usual site: Myoglobin: muscle tissues Haemoblogin: red blood cells (whole body) Main function: Myoglobin: stores oxygen (in muscle tissues) Haemoglobin: Oxygenation of tissues (whole body) Waste (CO2) collection (whole body) gas exchange (lungs, tissues) Oxygen carrying capacity: Myoglobin: monomeric = one heme prosthetic group, one iron atom Haemoglobin: tetrameric = four heme prosthetic groups, four iron atoms. Structure Myoglobin: secondary and tertiary, no allosteric interaction Haemoglobin: quaternary structure, allosteric interaction, different affinity Affinity to oxygen Myoglobin: Oxidation (Fe2+ → Fe3+) prevents oxygen binding. Haemoglobin: requirement specific affinity: (gradually increasing in the lungs, . gradually decreasing at the tissues) Prefered binding Myoglobin: Carbon monoxide preferred to Oxygen. Haemoglobin: Oxygen, carbon dioxide While in cases of hugely increased demand, myoglobin releases oxygen for metabolism, but, in the long run haemoglobin is more suitable for the purpose.
How many genes are shown on the section of normal DNA?
All of the genes are 'shown', but the B-strands of haemoglobin differ by one amino acid at position 6 (usually gutamic acid is espressed here, but in sickle cell anaemia valine is present instead)
Different between DNA and polypeptide?
DNA is divided into functional units called genes. A gene(def) is a segment of DNA that codes for a functional product (mRNA, tRNA, or rRNA). Since the vast majority of genes are transcribed into mRNA and mRNA is subsequently translated into polypeptides or proteins, most genes code for protein synthesis. The term polypeptide (def) refers to many amino acids (def) connected by peptide bonds (def). While all proteins are polypeptides, not all polypeptides are proteins. In some cases, smaller polypeptides coded for by two or more genes must be joined together to produce a functional protein. In other cases, as will be mentioned below, mRNA carries a transcript of several genes resulting in the synthesis of a large polypeptide that must subsequently be cleaved by enzymes called proteases into two or more smaller functional proteins. For simplicity, we will use the term proteinwhen referring to the end product of transcription and translation.-sudarvizhi prashanth
A molecule of hemoglobin can hold how many molecules of oxygen in the blood transport?
Four heme groups, so I think four molecules of oxygen can be transported by one molecule of haemoglobin.
What proteins are joined into long chains called polypeptides?
Many amino acids are joined together by peptide bonds to form polypeptides.
Red blood cells transport oxygen that is bound to?
The haemoglobin macro-molecule, four O2's per molecule.
What are non-mendelian trait?
Non-Mendelian traits are:A trait with no clearly dominant alleleA trait with four allelesA trait controlled by many genes
How many times neon lighter than haemoglobin?
3400
What is the Mrna sequence?
Eukaryotic genes have regions called "introns" and "exons". Exons code for polypeptides (often specific domains or motifs), while introns don't code for anything (that we know of) and are removed. mRNA splicing is the process where an mRNA molecule is cut up (usually by the "spliceosome") to remove the introns from an mRNA message. This is advantageous for us eukaryotes because we can recombine exons in different orders, and even combine exons from different genes to generate many proteins from a smaller number of genes.
What is the mRNA sequence splicing?
Eukaryotic genes have regions called "introns" and "exons". Exons code for polypeptides (often specific domains or motifs), while introns don't code for anything (that we know of) and are removed. mRNA splicing is the process where an mRNA molecule is cut up (usually by the "spliceosome") to remove the introns from an mRNA message. This is advantageous for us eukaryotes because we can recombine exons in different orders, and even combine exons from different genes to generate many proteins from a smaller number of genes.
How many genes are there in DNA?
Different species have different numbers of genes. About 1.5% of human DNA is genes - and it is estimated that there are around 23,000 protein-coding genes.
How many times is haemoglobin heavier than helium?
about 4 times
What is closely related to proteins?
Many things are closely related to proteins, including polypeptides and amino acids.
