True
All somatic cells have same genes but the genes whose product is not needed are turned off. Some genes are expressed constitutively and some genes are turned off and on depending upon the requirement of proteins.
Answer:
When bacteria are exposed to an antibiotic, such as penicillin, they often mutate.
Explanation:
This means that part of their DNA changes, giving the antibiotic resistance to the bacteria.
In this way, the bacteria can generate a copy of their DNA and transmit it to their offspring, giving their resistance.
On other occasions, a resistant bacterium dies from causes unrelated to the antibiotic, leaving its DNA free.
If other bacteria manage to capture that DNA, it will also acquire antibiotic resistance.
MRNA is the nucleic acid that moves it. I remember it well because the "m" in mRNA stands for messenger. It sends a message to the ribosome.
Hematochromes, Carotenes, and Xanthophylls!
Answer:
Foods are the basic building blocks of living things, yet they may pose a threat and become harmful to human health in some situations [13]. Many people throughout the world become ill because of the food they eat. These diseases associated with food consumption are referred to as foodborne diseases, and they may result from dangerous microorganisms [14]. Foods can become harmful to human health or even fatal when combined with bacteria, mold, viruses, parasites and chemical toxins [13]. Therefore, it is absolutely necessary that consumers be provided with a safe food supply. The factors involved in the potential threat caused by foods are inappropriate agricultural practices, poor hygiene at any stage of the food chain, lack of preventive controls during processing and preparation of the food, incorrect use of the chemical materials, contaminated raw materials, food and water and inappropriate storage [15].
Explanation:
