Sex chromosomes and autosomes make up the chromosomes. Sex chromosomes determine the sex of the organisms while autosomes determine the physical characteristics of the organisms. Although the sex chromosomes only determine the sex of the organism, it has a direct link to certain physical characteristics of an organism i.e., colorblindedness is only common to males.
Answer:
1. use of the wrong antibiotic
2. use of insufficient concentration of the right antibiotic
Explanation:
MRSA means Methicillin-resistant staphylococcus aureus
VRSA means Vancomycin-resistant Staphylococcus aureus
These are resistant forms of the bacteria <em>Staphylococcus aureus</em> to the antibiotics mentioned.
Bacterial resistance to antibiotics occurs when bacteria develop mechanisms that protect them against the effects of previously effective antibiotics.
Misguided and inappropriate use of antibiotics results in resistance, and they mainly occur as a result of two activities:
1. Use of wrong antibiotics: antibiotics are chosen using a microbiological technique called 'sensitivity testing', to determine which antibiotic is effective against a bacterium. However, when antibiotics are taken without proper sensitivity testing, the bacteria develop resistance against such antibiotics.
2. Use of inadequate concentration of the right antibiotic: This involves using less than the minimum inhibitory of minimum bactericidal concentration of an antibiotic against a bacteria. In this case, the organism has ample time to evolve in the presence of the antibiotic, hence the occurrence of resistance.
Answer: iM guessing you meant something like this
C. The transport of molecules into and out of the cell through osmosis and diffusion. D
Explanation:
Which of the following is a function of the cell membrane of a cell? A. The production of energy from food molecules using cellular respiration. B. The production of genetic material through DNA transcription. C. The transport of molecules into and out of the cell through osmosis and diffusion. D. The transport of genetic material within the cytoplasm of the cell.