Hydrogen bonds exists between the DNA strand and its complementary strand such that; there are two hydrogen bonds between every A and T, and three between every C and G.
Therefore; in this case there will be (2 ×3 ) +(3×3) = 15 hydrogen bonds for the above strand. this is because Adenine binds to Thyamine with two bonds (3 pairs) and Guanine binds to Cytosine with three bonds (3 pairs).
Answer:
Controlled Investigation
Field Investigation
Explanation: In a controlled experiment, the scientist has total control over the environmental conditions. The temperature, humidity, amount of light, amount of noise, materials, etc. can all be controlled and monitored by the scientist throughout the investigation.
A field investigation involves observing and measuring plants and animals (including people) in their natural habitat or environment without changing, harming, or altering the setting or any part of the test subjects. Like in a controlled experiment, the scientist chooses to observe and measure how one change (IV) has a measurable effect (DV) on something else.
<span>Carbohydrates
are composed of single sugar units that make u starches which offer a ready
source of your cell’s fuel. These units constitute monosaccharide,
double-monosaccharide units called disaccharides and multiple-monosaccharide
molecules while lipids are molecules that constitute hydrocarbons and make up
the building blocks of the structure of living cells which stores energy in fat
tissues for future uses. Both lipids and carbohydrates offer essential
nutrients to diet. Both of them play an
important role in absorption and digestion but have their own mechanic ways.</span>
