The prokaryotic cell lacks a nucleus and membrane bound organelles.
Answer:
Explanation:
Nucleic acids are the organic materials present in all organisms in the form of DNA or RNA. These nucleic acids are formed by the combination of nitrogenous bases, sugar molecules and the phosphate groups that are linked by different bonds in a series of sequences. The DNA structure defines the basic genetic makeup of our body.
Answer;
B. Proteins.
Explanation;
-Information that is stored in DNA molecules is used to manufacture proteins through the process of transcription and translation.
-During transcription, DNA molecules are used to generate mRNA (messenger RNA), which then undergoes translation in the cytoplasm to generate proteins. These proteins include enzymes that control or regulate and catalyze different biological reactions in the body.
- Additionally, one of the characteristic of protein is being protein in nature which means like proteins they are produced through translation in the ribosomes.
Answer:
The increase in cranial or cerebral capacity inherited from the primate ancestors is the characteristic that allows the creation and use of tools.
Explanation:
The evolution of the human brain allows the creation of more complex tools.
Homo habilis was the first hominid to make tools. its size was similar to the australopithecus but its brain was twice with a cranial capacity of 650 cc. These tools were made of stone and were used by striking against each other.
The answer is D, a piece of a chromosome
