Answer:
the mRNA goes through extensive modifications such as addition of a poly tail and a 5' cap in eukaryotes but not in prokaryotes.
Differences:
- the promoters in prokaryotes have a -35 and -10 box while in eukaryotes they are variable but have a TATA box from
- the transcription initiation site there is a single RNA polymerase in prokaryotes while eukaryotes have multiple RNA polymerases
- the sigma factor associates with the promoter region in prokaryotes but in eukaryotes there are many basal transcription factors
Explanation:
Ribosomal and transfer RNAs are processed both in prokaryotic and eukaryotic organisms. However, mRNA is only processed in eukaryotes. In eukaryotic cells, mRNA processing involves:
1. Capping at the 5' end. This process has several functions including regulation of nuclear export, prevention of eukaryotic mRNA degradation and promotion of translation.
2. Splicing in order to remove introns and conserve coding exons. Splicing helps to increase the diversity of the eukaryotic mRNAs (and therefore eukaryotic proteins)
3. Polyadenylation by the addition of a poly(A) tail at the 3' end. The poly(A) tail makes the eukaryotic mRNA molecule more stable and also prevents its degradation by exonucleases.
Answer:1
1. It can be use as source of energy and fuel.
2. It can be use to build body tissues and bones.
3. To fight pathogens or fight infections.
4. It can be use for bones development.
Explanation:
Biomass are Renewable source of organic matter that can be use for energy. These includes wood, seaweeds, crops and animal wastes. Biomass get it's source of energy from sunlight. All biomass contained stored energy from sun which is gotten from the process of photosynthesis where green plants uses carbondioxide and water with light energy to produce sugars. Animals get their energy from consuming sugars.
Biomass eaten by animals can be use in four ways.
. It can be use as source of energy and fuel.
2. It can be use to build body tissues and bones.
3. To fight pathogens or fight infections.
4. It can be use for bones development.
Answer:
Proteins
Explanation:
Protein describes any of the numerous large, complex naturally-produced molecules made up of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.
When there has been an error in copying a DNA, a DNA repair gene fixes its mistakes. However, a person having an error in his DNA repair gene (which are not corrected), it may lead to gene mutations with the possibility of leading to cancer. The mutations of DNA repair gene can possibly be inherited or acquired.
Answer:
all organisms need food for the energy required to live and grow.
