He got to that conclusion like this: Regarding qualitative tests, he saw that no protein was present but that DNA was present. The chemical analysis showed that phosphorus was present in DNA not in protein. Talking about enzyme tests he saw that transformation did not happen when they added enzymes to the DNA.
Explanation:
Qualitative chemical and catalyst tests helped Avery determine DNA because the remodeling principle by conducting a series of tests to search out if the remodeling principle was DNA or a macromolecule and therefore the result's that no macromolecule was present however that DNA was present.
Although varied scientists engaged in diplococcus analysis throughout the primary 1/2 the 20th century, 2 of those researchers vie a particularly vital role within the course of events that junction rectifier to the invention of deoxyribonucleic acid because of the hereditary material. One in all these people was Oswald Avery.
The sound waves travel from the outer earand in through the auditory canal, causing the eardrum, or tympanic membrane, to vibrate. This, in turn, causes the three small bones, known as the ossicles, or the hammer, the anvil and the stirrup, in the middle ear to move.
Hope this help you.
Janelle should talk to any trusted adult for advice. I'm assuming she can't just get her local physician any time she wants to talk to them. Someone else who drinks is not reliable. The people at the party will probably drink too.
Answer:
The preferable word for the fill in the blanks will be - Acid rain.
Explanation:
<u>Acid rain</u> is produced by the interaction of water with sulfur dioxide and nitrogen dioxide; damages forests reduces crop yields and corrodes surfaces of buildings and statues; turns water in lakes and rivers acidic, harming fish and other aquatic species.
- Acid rain is mainly caused by air pollution such as the burning of industrial coal and other fossil fuels, etc.
Answer:
In the haploid cell, only one pair of sister chromatids are present, whereas in the diploid cell, two pairs of sister chromatids are present.
Explanation:
Chromosomes with their sister chromatids become visible during prophase. A haploid cell has only one complete set of chromosomes while there are two complete sets in a diploid cell. Therefore, prophase in a haploid cell would show the presence of only one pair of sister chromatids for each chromosome. This cell would not have the homologous pair with two pairs of sister chromatids.
On the other hand, the diploid cell would have two homologous chromosomes for one homologous pair. Each of the chromosomes of a pair would have two sister chromatids. Therefore, one homologous pair would have a total of four chromatids or two pairs of sister chromatids.
