Answer:
Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.
Explanation:
Answer:
The Earth's Tilt
Explanation:
Due to the Earth's tilt, more of the Sun's rays directly hit a particular region of the Earth during the summer months than during the winter months. As a result, the average temperature is increased during the summer.
The answer is B: CGT
According to the base pairing rules, in DNA, adenine
pairs with thymine (A-T), and cytosine pairs with guanine (C-G).
The complementary triplet for GCA is CGT. So, for the DNA segment AGT CAC GCA, the complementary strand will be TCA GTG CGT:
Known strand: <span>AGT CAC GCA</span>
<span>Corresponding strand: TCA GTG CGT</span>
The correct answer is - That some force lifted the rocks from the water.
The fact that there's sedimentary rocks on the tops of the mountains is an evidence that there has been some force that managed to lift upwards parts of the seafloor. Taking into consideration how slowly this force manages to lift up parts of the Earth, we can easily assume that the Earth is very old. The amount of time that is needed for a part of the seafloor to be lifted few thousand meters upwards is counted in tens of millions of years, thus giving us evidence that the Earth has been around for a very long time.
Answer:
I will demonstrate the first one for you.
2) A. Identify alleles:
Allele one: LL= long hair (phenotype)
Allele two: ss = short hair (phenotype)
B. Parent cross: LLxss
3) A. Identify alleles:
Allele one: tt = two tailed
Allele two: Tt = two tailed
B: Parent cross: ttxTt
Explanation:
