The pairings between nucleic bases, forming "Watson-Crick" base pairs, are, on the one hand, adenine with thymine, and, on the other hand, guanine with cytosine. In addition, two nucleic acid sequences can match only antiparallel, that is to say between segments of opposite directions. Therefore, two nucleic acid sequences are complementary when the nucleic bases of one can pair with the nucleic bases of the other in the opposite direction to form two paired antiparallel segments.
The selective pairing of adenine (A) with thymine (T) and guanine (G) with cytosine (C) is based on the number of hydrogen bonds established between one of the purine bases and the one of the pyrimidine bases:
* Two hydrogen bonds between adenine (purine) and thymine (pyrimidines);
* Three hydrogen bonds between guanine (purine) and cytosine (pyrimidine).
Purity pairs, pyrimidine pairs, adenine-cytosine pair, or guanine-thymine pair are not normally formed. This selectivity is crucial for a large number of biochemical processes involving nucleic acids.
Osteoblasts then begin to deposit bone extracellular matrix over the remnants of calcified cartilage, forming spongy bone trabeculae
The answer is Order the Nigiri sushi which consists of just tuna and rice.
Allergic reaction is only erupted when the patient exposed to a specific ingredients. Danny developed an allergy reaction to the carbohydrate of rhodophytes, so the reaction wont appear if the sushi doesn't contain it. Rhodophytes is the Division that contain red algae, eating tuna and rice only should be okay.
Based on the narrow sense habitability value of 0.4 it would not be worth doing this artificial selection.
A habitability of 0.4% average is all about 40% of the individual difference that we observe in and say shyness may in some other ways be attribute to genetic individual difference does not mean that 40 % of any persons shyness is due to his/ her gene and the other 60% because of environmental conditions.
The value of habitability is always lie between 0 to 1. and narrow sense is approximately 0.8.It can be close to 1 and indicates the genetics explain lot of variation in trait.
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D- Germinal is right after conception, then the baby becomes an embryo, then finally a foetus.