The answer is A. RNA polymerase will be making an mRNA using a single DNA strand as a template. So, for example if the DNA strand is AGGCAGC the mRNA strand will be UCCGUCG.
U= uracil which replaces thymine in mRNA molecules.
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Answer:
In human vision, the cone visual opsins are grouped into four photoreceptor protein families LWS, SWS1, SWS2, RH2
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- SWS1: produce pigments sensitive to very short wavelengths, UV-violet, 360-450 nm.
- SWS2: produce pigments sensitive to short wavelengths, blue, 450-495 nm
- RH2: produce pigments sensitive to medium wavelengths, green, 495-560 nm
- LWS: produce pigments sensitive to long wavelengths, yellow-red, 560-770nm.
Explanation:
Photoreceptor proteins are light-sensitive proteins that mediate light-induced signal transduction, thus they are involved in the sensing and response to light in a variety of organisms.
The photoreceptor proteins are classified based on the chemical structure of the chromophores involved, the light absorption and on the protein sequence.
This photoreceptor proteins are located at the cone photoreceptor cells and are responsible of photopic vision.
For scotopic vision, rhodopsin is responsible. Rhodopsins are the visual pigments (visual purple) of the rod photoreceptor cell in the retina. They are responsible of human vision in dim light, as it contains a sensory protein that converts light into an electric signal.
Explanation
If the asteroid has a collision with another asteroid
Capture-mark-recapture method is a technique commonly used to measure the size of a population. When using this technique, a number of individuals in a certain natural population are marked, returned to that population, and some of them are eventually recaptured as a basis for estimating the size of the population at the period of marking and release.
Advantages of the capture-mark-recapture method include; it is relatively costly, reliable, and its accuracy does not depend on the evaluation of the amount of habitat.
Disadvantages of the capture-mark-recapture method include; its accuracy depend on capturing a large proportion of the population, and marking of animals can have a dramatic effect on the animals.
