Answer:
The correct answer would be - medium with lactose present and glucose absent.
Explanation:
There are genes present in lac operon that takes part in the lactose metabolism. These genes expressed only if a medium has lactose in absence of glucose.
In the absence of glucose and lactose is present, due to inducer the lac repressor is removed from the operator. This leads to the binding of CAMP to DNA as the CAMP levels are high. It helps in high transcription levels b binding RNA polymerase to promotor.
The correct answer is that porous minerals weather faster.
The process of weathering alter and disintegrates the rocks and minerals closer to or at the surface of the Earth. This process shapes the Earth's surface. The three kinds of weathering comprise biological, mechanical, and chemical. Weathering dissociates apart and erodes rocks and minerals.
The rocks are the symbols of strength and durability. The rocks are usually resilient to weathering. This confrontation relies on the mineral composition and mineral porosity. The physically soft or porous minerals are easily crushed and dissociated, while in case of harder minerals it is quite tough.
Answer:
Luster Weight Streak
Explanation:
That's correct so you don't have to worry
Answer:
5. True
6. True
7. False, as earth is farthest to the sun during July not closest.
8. False, as earth is closest to the sun during January not farthest
The rate for a recessive allele to decline to half its initial frequency will depend on the presence of selective evolutionary forces and random mating.
<h3>What is recessive allele frequency?</h3>
The recessive allele frequency refers to the initial frequency of a recessive allele in a population, which is masked in heterozygous individuals.
The recessive allele frequency depends on the adaptive fitness of this gene variant, the presence of selective forces and random mating, that facet its rate of change.
In conclusion, the rate for a recessive allele to decline to half its initial frequency will depend on the presence of selective evolutionary forces and random mating.
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