Having two copies of the mutated genes cause sickle cell anemia, but having just one copy does not, and can actually protect against malaria - an example of how mutations are sometimes beneficial.
The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
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The condition which is most likely to cause death of a botulism patient is Respiratory failure.
Explanation:
The causal organism of Botulism is the bacteria <em>Clostridium botulinum.</em>
It is usually found in canned food and causes a very severe food poisoning.
The bacteria release botulinum toxin on reaching the intestine of the person and from their the toxins are absorbed into the blood.
Botulism mainly effects the neuromuscular system of the body. .
The basic symptoms of botulism is characterised by weaknes in limbs , jaws and eyes.
A decreased muscular activity sometimes causes constipation due to slowed down peristalsis.
Sometimes nausea , vomiting and diarrhea may occur.
If left untreated and in severe cases, the toxins may proceed to effect the respiratory muscle thus hindering the proper breathing and gaseous exchange.
A further damage could result in the respiratory failure.
Answer:
A) The two genes are unlinked and are assorting independently, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
Explanation:
The χ2 value means nothing on its own--it is used to find the probability that, assuming the hypothesis is true, the observed data set could have resulted from random fluctuations. A low probability suggests the observed data is not consistent with the hypothesis, and thus the hypothesis should be rejected. The hypothesis that you are testing are two genes are unlinked and are assorting independently, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
<span>A. endoskeleton
</span>Endoskeleton is not a characteristic of Arthropods that has attributed to their diversity and success. Endoskeleton is defined as inner characteristics of the skeletal feature of an organisms such as bears, humans, fish and etc.
Exoskeleton on the other hand is the trait by which arthropods posses. It is skeletal feature that is described outside or is extrinsic, this is evident as crabs have their skeletons outside of their body.
The spinal cord is the primary means for transmitting messages between the brain and the rest of the body.
