Answer:
The correct answer is: Variation in nucleotide sequences are located in those regions of the gene which do not affect the sequence of the protein due to genetic code degeneracy.
Explanation:
- Proteins are encoded from the genes located in the chromosomes.
- The genes are made up of the heritable DNA (Deoxyribonucleic Acid) sequences.
- These genes are transcribed by the enzyme called RNA polymerase into mRNA (messenger Ribonucleic Acid) sequences in the nucleus.
- The mRNA is then translated into protein sequences by the Ribosome in the cytoplasm or the RER (Rough Endoplasmic Reticulum).
- The Ribosome reads the mRNA code in form of triplets, that is, three consecutive nucleotide are read as a single code that encode for a single amino acid. This triplet code that responsible for coding for a single amino acid is called a Codon.
- The Codons are degenerate in nature. This means that among the three nucleotide in a codon the first two nucleotide is specific for a particular amino acid. The third nucleotide is "wobble" in nature. This means that whatever may be the nucleotide in the third position it will not change the amino acid coded by the first two nucleotide.
- Hence, a single amino acid is coded by more than one codon.
- So, gene sequences showing variation in the wobble nucleotide position will encode for the same protein.
True.
Parenchyma cells are the most abundant type of cells in a plant since they make up parenchyma tissue which is the most common tissue in plants.
Parenchyma cells have thin walls, and posses large vacuoles as well as distinct intercellular spaces.
Parenchyma cells have many functions. Each function is largely determined by where the cell located.
Those found in roots and stems are used to store food in form of starch, and water. The large vacuoles in the cells is where the food and water are stored.
Explanation:
Plants do not need respiratory system because roots , stems, leaves of plants exchange gases for respiration separately. ... They don't have lungs to breathe so they don't need a respiratory system. They have stomata.
Uterus suffer severe cramp during menstrual cycle of some women.IT is associated with pain.some women suffer severely enough to an extent they are unable to do daily activities.Growth in the womb such as fibroids can also be the source of pain
