Answer:
Option (d).
Explanation:
DNA is the genetic material of all the organism except some viruses. DNA is composed of nitrogenous base, deoxyribose pentose sugar and the phosphate group.
DNA replicatese by semi-conservative mode of replication in which one the daughter DNA consists of one newly synthesized strand and one parental strand. This mode of replication was explained by Messelson and Sthal experiment. The cells from 15N medium are transferred to 14N medium the band of intermediate density was observed. The daughter DNA consists of one 15N DNA strand and one 14N DNA strnd. This strand undergo replication in the 14N medium. This time one low density DNA band ( contains 14N - 14N DNA strand) and one intermediate density band ( 14N-15N DNA).
Thus, the correct answer is option (d).
Answer:
Bactrian camels have two humps rather than the single hump
Explanation:
Answer: The statement is true
Explanation:
Natural selection, as its name implies refers to the choice of certain favorable traits such as resistance to diseases, bigger fruit size etc above lesser favorable traits such as easy susceptibility to diseases, small fruit size etc.
Hence, nature allows the traits that will help living organisms survive best in their environment to be passed down to new offsprings while it eliminates all other traits.
Thus, the statement is true
Answer:
The correct answer is C production of FAD to FADH2 by the citric acid cycle represent the energetic capacity to synthesize about 1.5 ATP.
Explanation:
Citric acid cycle is one of most important stage of cellular respiration.Citric acid cycle or TCA cycle composed of various enzyme catalyzed biochemical reaction.
various reduced coenzymes are produced during TCA cycle such as NADH,FADH2.FADH2 is formed from FAD during the conversion of succinate to fumarate.
The FADH2 then enter electron transport chain to oxidize itself into FAD along with the generation of 1.5 ATP.
Answer: It's C
Explanation: because They also do not have a brain, respiratory system, or circulatory system.