Answer:
recessive
Explanation:
A lethal allele is a gene variant associated with a mutation in an essential gene, which has the potential to cause the death of an individual. In general, lethal genes are recessive because these alleles do not cause death in heterozygous individuals, which have one copy of the normal allele and one copy of the allele for the lethal disease/disorder. In recessive lethal diseases, heterozygous individuals are carriers of the recessive lethal allele and can eventually pass the 'defective' allele on to offspring even though they are unaffected; whereas dominant lethal diseases are caused by dominant lethal alleles, which only need to be present in one copy to be fatal. In consequence, the frequency of recessive lethal alleles is generally higher than dominant lethal alleles because they can be masked in carrier individuals. Some examples of human diseases caused by recessive lethal alleles include, among others, Tay-Sachs disease, sickle-cell anemia, and cystic fibrosis.
Answer: On a cool October morning you dressed warmly for a 10K race sponsored by a local charity, and about half way through the race you realize that you have stopped sweating in all the warm running clothes you put on and are beginning to feel faint and slightly disoriented. The most likely reason of his symptoms are that <em><u>you are suffering a dehydration followed by possible hypothermia.</u></em>
Explanation:
If you <u>run dehydrated</u>, your <em>heart system</em> will be struggling in poor conditions, so it will be overexposed and your heart rate will rise considerably. On the other hand, <em>the body will not be as efficient in regulating body temperature.</em>
Your <u>muscles and your brain </u>as well as the entire <u>nervous system </u>will not respond the same and will be demanded in conditions not suitable for your effort, therefore, the response time will fall, you may suffer cramps, headache, dizziness and even muscle spasms . If the effort is more than two hours long, you probably need more than water and you should try <u>sports drinks </u>also.
When running at <em>low temperatures</em>, a relevant factor is <em>clothing.</em> If we are not <u>properly dressed to run</u> in cold and windy conditions, we will naturally be more exposed to suffer from <em>hypothermia.</em> The manifestations of hypothermia are varied and include pain and tingling in the hands and feet, tremors or chills, decreased physical capacity and, in more extreme cases, alterations of consciousness.
A person who is suffering from hypothermia should wrap in dry clothes and get out of exposure to cold or wind , hydrating with warm liquids can also be useful.
The given question is incomplete as the option are not provided however, the correct options are as follows:
Defective proteins are often degraded quickly, making their effects temporary.
Single amino acid substitutions caused by errors in mRNA transcription would not affect protein function.
Unlike DNA mutations, mRNA transcripts have short half-lives and are not inherited across many generations.
Degradation of defective proteins activates mRNA repair pathways RNA polymerases synthesize many transcripts per gene, so only a small fraction of RNA transcripts would have errors.
ch mRNA molecule is only translated once and then degraded
Answer:
The correct answer is - statements 1, 3, and 4.
Explanation:
DNA polymerase is the enzyme that is responsible for the production of the new DNA molecule and any mutation in this enzyme that will inhibit the DNA repair process which affects future generations.
RNA polymerase is an enzyme that is responsible for the transcription of DNA to mRNA and any error-prone mRNAs have chances of degradation. Error in DNA replication is from generation to generation as it is inherited
The process of transcription is quick.
Answer:
A
Explanation:
Acids and bases when mixed neutralize eachother. and 7 is neutral on the PH scale
