Answer:
b) spontaneous reverse mutation
Explanation:
Spontaneous mutations are produced by natural biological processes, while induced mutations are produced by mutagenic agents that trigger nucleotide errors in the DNA sequence. In the first phase of the experiment, Sally generated an induced mutation by using 5-bromouracil. The resulting strain required a constant supply of tryptophan to grow.
A reverse mutation restores the wild-type phenotype modified by a forward mutation, thereby reversing the phenotypic alteration to its original state. In a second step of the experiment, the colonies grew without the supply of tryptophan, thereby evidencing that the mutation was reversed in the original colony.
Answer:
As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans' ancestral past ( Gould, 1991 ).
Explanation:
Answer:
Explanation:
If you are talking abou the movie GATTACA, then the reason is that A, T, G, and C are DNA coding letters so it would sort of make sense to highlight those to complement or enhance the movie's meaning (its also part of the movie's name)
Answer:
With the law of the Indian Civil Rights Act (ICRA) at the time, also called the Indian Bill of Rights, the indigenous people were guaranteed many civil rights they had been fighting for. The ICRA supports the following: Right to free speech, press, and assembly. Protection from unreasonable invasion of homes.
Answer:
Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.
Explanation:
