7. Adenine (A), Guanine, Cytosine and Thymine are the four nitrogenous bases in DNA.
8. In DNA Cytosine always forms hydrogen bonds with guanine.
9. The sequence of nucleotides carries the genetic information of an organism.
10. The process of replication produces a new copy of an organism's genetic information which is passed on to a new cell.
11. The double-coiled shape of DNA is called a double helix
Explanation:
There are four nitrogenous bases in the DNA of an organism. Two of the bases are pyrimidines eg: Thymine and cytosine while 2 of the bases are purine bases namely adenine and guanine. The purine of one strand forms a hydrogen bond with pyrimidine of the parallel strand of DNA.
The bases are present in nucleoplasm as dNMPs and in DNA they are present as dNTPs (deoxyribonucleotide triphosphate). During replication, these dNMPS keeps on bonding with other dNMPs in the presence of ATP and as DNA Polymerase, ligase topoisomerase etc. These nucleotides form the DNA strands and they are responsible for coding proteins. The sequence of DNA is also termed as gene.
The double helix structure of DNA was given by Watson and Crick. Each strand has an alternative backbone of sugar and phosphate group. The four bases bonds with glycosidic and phosphodiester bonds with sugar and phosphoric acid.
Answer:
Antimicrobials are classified as selective and non-selective, selective are antibiotics, non-selective are surface disinfectants that are not used in human organisms such as antibiotics.
Explanation:
That is why antibiotics are considered more effective to inhibit the growth of bacteria, since the special antibiotic that covers a certain spectrum of bacteria is selected, that is what gives them specificity and greater effectiveness, some are bacteriocidal and others bacteriostatic, considering the former as those that generate the defined death of the bacteria, and assures us more of bacterial death or inhibition of proliferation.
Fish, whales, sharks, dolphins, plants, jellyfish, plankton<span>, coral (coral is both biotic and abiotic), sponges, shrimp, starfish, squids.</span>
Answer:
B. An endothermic reaction
Explanation:
It absorps light, CO2, and water to make simple sugar and O2
