A twin study is conducted to examine the role of genetics and environment on the fondness of individuals for chocolate. Which of
the following results would lead to the conclusion that genetic factors are important in the development of this trait? a. Twins who have lived together are more similar on the trait than twins who have lived apart.
b. Twins who have lived apart are more similar on the trait than twins who have lived together.
c. Identical twins are more similar on the trait than fraternal twins.
d. Fraternal twins are more similar on the trait than identical twins
"Identical twins are more similar on the trait than fraternal twins" would lead to the conclusion that genetic factors are important in the development of this trait.
<u>Option: C</u>
<u>Explanation:</u>
Research performed on identical or fraternal twins are twin investigations. We seek to expose the significance for characteristics, phenotypes and diseases of environmental and genetic factors. Twin work is considered a key instrument in the domains of behavioral genetics and material, from biology to psychology.
Fraternal or dizygous twins each share around 50 % of their DNA, just like any other parent. Since the twins are born into the same family they share other factors of their surroundings. The existence of a given genetic or phenotypic trait in just one component of a pair of twins called discordance offers a valuable insight into influence on such a trait on climate.
Pseudomonas has a plasmid containing the mer operon that incorporates a quality for mercuric reductase catalyzing mercuric particle to an uncharged type of mercury. The inducer is mercuric particles.
The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.
