Answer:
Explanation:
Genetic code is a sequence of Nitrogenous base in RNA(ribonucleic acid) or DNA (deoxyribonucleic acid) that determines or specify an amino acid. Genetic codes consist of a triplets code called codon that are written in three alphabeth each codon specifies an amino acid.
Example is AUG that specifies methionine which is a start codon. There are 64 codon, 61 of them specifies an amino acid while 3 are called the stop codon as they terminate amino acid formation process.
An alteration in the sequence of this nucleotide can lead to the formation of a new amino acids other than the specify.
Answer:
The correct answer is D. involves proteins in plasma membranes.
Explanation:
Animal cells have several types of proteins embedded in their cell membrane. These proteins play an important role in the transport of molecules, cell recognition, and cell communication.
Recognition proteins are a type of glycoproteins present in the plasma membrane that allow one cell of the body to recognize the other body cells by making contact with recognition proteins of other cells. Receptors proteins allow cell-cell communication by receiving extracellular proteins.
These proteins are important for proper growth and development of the cell. Therefore the correct answer is D. involves proteins in plasma membranes.
How to negative a sentence
Answer:
It helps prevent invasive species from coming in.
Explanation:
Invasive species ruin habitats because they have no natural predators, so they grow and mooch off of native species which kills them off.
