The most probable answer here is the third option from the top, but it not entirely accurate because mRNA is not translated to make tRNA. The latter is already present in the cytoplasm of the cell.
The first step in protein synthesis is Transcription in which a new RNA molecule is synthesized from a DNA template. This process takes place in the nucleus of the cell. The new RNA strand is called messenger RNA or simply mRNA because it carries information from the DNA in the nucleus to the site where this information can be Translated from nucleotide language to amino acid language. This site is actually the ribosome/s usually located in the cell cytoplasm.
The ribosome attaches to the mRNA and begins to read the code on the mRNA.
tRNA which is free in the cytoplasm or attached to the ribosome begins to fetch the correct amino acid coded for by the mRNA from the amino acid pool in the cytoplasm.
These amino acids are linked together in the ribosome with the help of enzymes to make a polypeptide chain which is actually the protein, newly formed.
The statement that is true about Protein synthesis is that DNA directs the production of mRNA; mRNA is translated to make tRNA; tRNA assembles the protein.
The correct statement about protein synthesis is: DNA directs the production of mRNA; mRNA is translated to make tRNA; tRNA assembles the protein.
Protein synthesis involves two main steps: transcription and translation. Transcription occurs in the nucleus and involves the synthesis of mRNA using a DNA template.
The mRNA molecule then moves to the cytoplasm where it is translated by ribosomes and tRNA molecules.
The tRNA molecules bring specific amino acids to the ribosome, which then assembles them into a polypeptide chain to form a protein.
Overall, DNA provides the instructions for the synthesis of mRNA, and mRNA serves as the template for protein synthesis.
Learn more about Protein synthesis here:
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b. the plant flower opening with the sunrise
c. the plant root growing down into the soil
d. the plant turning towards the sun
Answer:
c. the plant root growing down into the soil
Explanation:
The plant root going down deep into the soil is an example of positive gravitropism. Gravity pulls everything towards the center of earth i.e. downwards and roots follow the direction of gravity automatically by growing downward towards soil that is why it is known as positive gravitropism. In short we can say that root favors the direction of gravity.
Shoot on the other hand show negative geotropism/gravitropism i.e. it grows towards the opposite direction of gravity. Shoot grow towards upside direction i.e. away from the surface towards sky.
b. Allele IA and IB are codominant, and allele i is recessive.
c. Allele i is dominant over alleles IA and IB.
D. Three alleles code for blood types and three phenotypes are possible.
Multicellular organisms are organized into various levels, including cells, tissues, organs, organ systems, and organisms. Each level has a unique role and is often comprised of lower levels, such as organs being made up of tissues, which are made up of cells.
Yes, indeed, multicellular organisms can be further organized into other levels. These include the cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels. For instance, molecules combine to form cells, cells combine to make tissues, tissues form organs, organs come together to form organ systems, and organ systems combine to form organisms. Organisms are individual living entities. For instance, every single tree in a forest is an organism. Single-celled prokaryotes and single-celled eukaryotes are also considered organisms and are typically referred to as microorganisms.
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