Answer:
The percentage of the non-singing trait in female birds in Generations 4 and 5 if this pattern continues will be 80 and 94
Explanation:
The percentage of the singing trait in female birds in Generations an 5 if, the pattern continues, is 26 and 18 respectivelyFor the non-singing females, we can see that 8 was added to the first term to get the second term. 10 was added to the second to get the third
For the 4th term, 12 will be added to the third term;
T4 = 68 + 12
T4 = 80
For the 5th term, 14 will be added to the fourth term;
T5 = 80 + 14
T5 = 94
Hence the percentage of the non-singing trait in female birds in Generations 4 and 5 if this pattern continues will be 80 and 94
The organism under study, which will be used to donate DNA for the analysis, is called the donor organism. The basic procedure is to extract and cut up DNA from a donor genome into fragments containing from one to several genes and allow these fragments to insert themselves individually into opened-up small autonomously replicating DNA molecules such as bacterial plasmids. These small circular molecules act as carriers, or vectors, for the DNA fragments. The vector molecules with their inserts are called recombinant DNA because they consist of novel combinations of DNA from the donor genome (which can be from any organism) with vector DNA from a completely different source (generally a bacterial plasmid or a virus). The recombinant DNA mixture is then used to transform bacterial cells, and it is common for single recombinant vector molecules to find their way into individual bacterial cells. Bacterial cells are plated and allowed to grow into colonies. An individual transformed cell with a single recombinant vector will divide into a colony with millions of cells, all carrying the same recombinant vector. Therefore an individual colony contains a very large population of identical DNA inserts, and this population is called a DNA clone. A great deal of the analysis of the cloned DNA fragment can be performed at the stage when it is in the bacterial host. Later, however, it is often desirable to reintroduce the cloned DNA back into cells of the original donor organism to carry out specific manipulations of genome structure and function.
Answer:
The correct option is number 2. NADH is not product of light reactions of photosynthesis.
Explanation:
The light energy from the sun is captured by the pigmented molecule, chlorophyll, of the plants. This light energy is converted into chemical energy by a serious of light-dependent reactions. The main products of light-dependent reactions are the energy molecule ATP and NADPH. Oxygen is released as a by-product during photosynthesis. Hence, all the option 1,3 and 4 are produced during the light reactions except for option 2 i.e NADH.
The optic nerve carries impulses to the thalamus and ultimately to the visual cortex of occipital lobes.
The optic nerve is a paired nerve, and part of the central nervous system that transfer visual messages from the retina to the vision areas of the brain through electrical impulses. The optic nerve is situated behind the eye and it is made up of retinal ganglion cell axons, glial cells and over one million nerve fibers.
Answer:
Explanation:
Active transport is the movement of molecules or substance from a region of lower concentration to a region of higher concentration across a cell membrane against the concentration gradient.
Active transport requires cellular energy and are of two types:
primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradient.
Active transport helps in the uptake of glucose in the intestines.
Cotransport or secondary active transport is the movement of molecules across a membrane it uses electrochemical potential difference that is created by pumping ions in or out of the cell.
Cotransport helps in the transport of glucose across the cell membrane.
