The cause of the change in insect characteristics occurred when a few survivors of the 1st spray became resistant to the insecticide. When they had offspring, those insect babies are born with the trait that made them resistant to insecticide. This occurs when the parents pass on the trait to their offspring. The end result is that the insecticide is less effective and more insects survive.
DNA contains instructions for making the different molecules that a cell needs to grow and function. For example, proteins are made by translating mRNA.
<h3>What is DNA and what is its function?</h3>
DNA is the structure responsible for transmitting all genetic characteristics — such as eye, skin and hair color, physiognomy, among others — in the process of reproduction of living beings. In this way, the main function of DNA is to carry information contained in its sequences, called genes.
DNA is made up of two chains of polynucleotides (strand), which are made up of several nucleotides. Nucleotides are joined together by bonds called phosphodiester (phosphate group linking two sugars of two nucleotides).
See more about DNA at brainly.com/question/264225
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D. Dominant
It is dominant as...
The white coat alleles are recessive, meaning the black coat would most likely be dominant alleles. Assuming the black coated dog had the alleles of BB, and the white coated dog had the alleles ww, there would be a 100% chance that the offspring would have Bw alleles, where the black coat is dominant, "all the offspring were black".
B = Black, W = White
B B
w Bw Bw
w Bw Bw
The diagram above shows that the offspring would be 100% black coated.
Not sure if you wanted an explanation, but I tried.
Hypertonic- plasmolyized
isotonic- flaccid
hypotonic-turgid
it means there is more sugar/ salt concentration in ratio to water
The body's first line of defense against pathogens are mucous membranes, as they prevent bacteria from entering the body. Hope this helps!
