The base pairing rules<span> for </span>DNA<span> are governed by the complementary </span>base pairs<span>: adenine (A) with thymine (T) in an A-T </span>pairing<span> and cytosine (C) with guanine (G) in a C-G </span>pairing<span>. Conversely, thymine only binds with adenine in a T-A </span>pairing<span> and guanine only binds with cytosine in a G-C </span>pairing<span>.</span>
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You can tell if asthma is related to exercise
(i) If a person has a coughing and shortness of breath. This feels a few minutes after an activity
(ii) You feel constricted. When on the exercise you feel like you can’t get enough air in your lungs.
(iii) A person feels fatigue after training instead of being energized.
(iv) If a person lives in a dry environment the breath in air that is divided and colder than the other parts of your body.
Answer:
The most appropriate answer would be D. The western skink population would be separated into two groups, and genetic diversity would decline in each group.
It can be explained with the help of a bottleneck effect due to which population size decreases suddenly due to events like a natural disaster, habitat destruction et cetera.
The construction of the multi-lane highway would have destroyed the natural habitat of western skinks and separate them into two populations.
The separation of a population along with the destruction of habitat would result in a severe decrease in the population size of western skinks.
Consequently, the genetic diversity would also decrease.
Answer:
The correct answer is: Species with limited resources usually exhibit a <em>logistic</em><em> </em>growth curve
Explanation:
In ecology, logistic growth refers to the phenomenon where the growth rate of a population decreases as the population reaches its carrying capacity (the number individuals that an environment can support without facing degradation). To put it simply, when a certain species has limited resources available to them, as they reach their carrying capacity, the population of that species will decrease due to death caused by lack of resources for consumption. The attachment shows what logistic growth looks like when plotted on a graph.
Designing efficacious norovirus vaccines remains a major challenge due to several factors:
(1) the extreme genetic variability within the norovirus family and within genogroups
(2) the rapid evolution of antigenically dissimilar pandemic GII.4 norovirus strains
(3) the lack of lasting immunity upon natural exposure to noroviruses in at least a proportion of the population.
