Enzymes split the DNA molecule into two rails and then transport corrisponding nitrogen bases to each rail.
More than 3.6 billion years！
The basic steps of light-dependent reactions are:
• Light absorption in Photosystem II (PSII) and excitation of PSII
• ATP synthesiS-proton gradient in electron transport chain isdriving ATP production in a process of chemiosmosis
• Light absorption in Photosystem I (PSI) and excitation of PSI
• Reduction of NADP+ and the photolysis of water.
Answer:
a. No discrepancy is present; organisms that contain an outer membrane and periplasmic space should stain pink because of their cell wall composition.
Explanation:
Gram stain is the staining method used to differentiate bacterial species into two groups, gram-positive and gram-negative bacteria. Factors that will differentiate gram-positive from gram-negative include the coloration of bacteria, the composition and chemical and physical properties of cell walls. In these tests, bacteria that have an outer membrane and a periplasmic space are considered gram negative and pink in color (sometimes similar to red) due to their cellular composition. For this reason we can state that there is no discrepancy present in the bacteria exposed in the question; Because this bacterium has an outer membrane and a periplasmic space, then it is normal for the bacteria to turn pink due to its cell wall composition.
Coat color in one breed of mice is controlled by incompletely dominant alleles so that yellow and white are homozygous, while cream is heterozygous. Thecross of two cream individuals will produce <span><u>equal numbers of white and yellow mice, with twice as many creams as the other two colors.</u></span>
