Answer: DNA Ligase
Explanation:
During DNA replication, both the parental DNA strands are separated and act as templates for the synthesis of new strands. The formation of the new strands occurs in only 5'-3' direction and thus both the strands are synthesized in a different manner. One new strand with the template of 3'-5' direction will be synthesized continuously and is called a leading strand. The other strand with the template of 5'-3' direction will be synthesized discontinuously in the form of DNA fragments. These fragments are called Okazaki fragments and the strand is called a lagging strand. DNA ligase connects these fragments later to form a continuous lagging strand.
Therefore, DNA ligase is required for ligation of Okazaki fragments, and in absence of DNA ligase, the ligation of fragments will not occur and the newly synthesized strand will be discontinuous. However, if DNA ligase is not present in the reaction mixture, then the chances are that not all the newly synthesized DNA strands will be discontinuous. Only the DNA molecule with the lagging strand will be in the form of fragments.
Answer: B Sputnik
Explanation: I hope this helps you
Robust australopithecines are also known by the genus (b) paranthropus.
Australopithecines are the sub-tribe of the tribe Hominini. Now extinct, these are the close ancestors of humans now. They have small body and small brains but they could walk on two legs (bipedal movement). They are considered to be the result of adaptive radiation.
Paranthropus are the extinct forms. They has two popular species: P. robustus and P. boisei. They has strong and tough skulls, bipedal and also omnivores. They has strong muscles for chewing but also possessed the teeth for the herbivores to grind. There are evidences that they used the tools made out of bones and also has the knowledge of fire.
To know more about Australopithecines, here
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Insoluble cellulose strands remain intact and thats the only thing
(A) the softest layer of rock?
