The answer is genetic variation because crossing over leads to changing the traits inherited by the daughter cells
To study the Blood-Brain Barrier requires that research involves the use of subjects such as guinea pigs, rabbits, or even humans. The research would involve conducting different treatments with different substances to check which their movement or effect on this barrier. The research may also involve opening up or severing of the brain for analysis. This, will, therefore, raise ethical issues on the use of human subjects, and the respect for human dignity and bodily integrity. The research would have to comply with the ethical rule of non‐maleficence which may limit the frontiers of the research hence limit its success.
Answer:
D
Explanation:
cause I think thts the answer sorry if I'm wrong
Answer:
The levels of biological organization, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
Explanation:
Hope this helps!
Answer:
The Central dogma includes the replication, transcription and translation.
Explanation:
RNA polymerase; It is invloved in transcription process in which the the squence of DNA is coppied to RNA known as mRNA.
Spliceosomes; The genetic information is in non-continuous form i.e introns (non-codding sequences) are present between exons. These introns are removed by spliceosomes from pre-mRNA.
Codons; Codon is the sequence of three nucleotides on mRNA that code for specific amino acid i.e AUG for methionine.
Ribosomes; These are known as protein factory because protein synthesis take place in ribosomes.
tRNA; It brought the specific amino acids for corressponding codon on mRNA for polypeptide chain.