The ability to roll the edges of the tongue upward in a U-shape has been considered to be an inherited ability. The standard assumption is that tongue-rolling is a dominant allele at a single gene locus. Which of the following would cast doubt on this assumption?
A)A teacher reports that after testing her class on the ability to roll their tongue, with very little effort the non-tongue-rollers can learn to also roll their tongues.
B)A student who can roll his tongue has a mother and father, both of whom cannot. C)A student who cannot roll his tongue has a mother and father, both of whom can.
D)The non-tongue rollers who learn to roll their tongues and the student who can roll his tongue while his parents cannot are two situations that cast doubt on the heritability issue. The situation where a student cannot roll his tongue while his parents can is inconclusive.
E)Behaviors are not inherited, only structures are inherited.
Answer:
D)The non-tongue rollers who learn to roll their tongues and the student who can roll his tongue while his parents cannot are two situations that cast doubt on the heritability issue. The situation where a student cannot roll his tongue while his parents can is inconclusive.
Explanation:
This is because non tongue rollers who learn to roll their tongues appears to negate the idea of tongue rolling ability to be inherited ability, while also the fact that non tongue rollers having parents who cannot roll their tongues also prove the idea that tongue rolling ability is hereditary.
Hence, the option D)The non-tongue rollers who learn to roll their tongues and the student who can roll his tongue while his parents cannot are two situations that cast doubt on the heritability issue. The situation where a student cannot roll his tongue while his parents can is inconclusive, will surely cast doubt on the assumption, that rolling of tongue is an ability that is hereditary
Black South Africans were also involved in the war.Some fought;others severed as scouts,guards,drivers,and workers.Many black South Africans were captured by the British and placed in concentration camps,where over 14,000 died. Your welcome✌️
<span>its started as a western influence entered the area in the 16th century, because the dutch and portuguese wanted to buy spices from the spice trade there.</span>
<span>Affinity is the degree to which people like or appreciate one another.
</span><span>Immediacy is the degree of interest and attention that people feel toward and communicate to others.
</span><span>Control is the degree to which the parties in a relationship have the power to influence one another.
</span>Affinity, immediacy, respect, and control are dimensions of relational communication, which is <span> interpersonal </span><span>communication and refers to the </span>personal relationships.
Answer:
Control group; experimental group
Explanation:
Control group: In research, the term "control group" is described as a group through which specific comparisons are being made in research or experiment. The main purpose of the control group in an experiment whereby the effect of treatment is considered unknown and hence, the comparison between the experimental group and the control group are being utilized to measure the "effect of the treatment".
Experimental group: In research, the term "experimental group" determines the group of specific participants who are being exposed to an independent variable. Therefore, these participants are either exposed or receive the "treatment variable".
In the question above, the given statement represents the participants seeing "neutral faces" are in the control group and the participants seeing "smiling faces" are in the experimental group.
