Answer:
Stage IV - There is a primary tumor, lymph node involvement and metastases.
Explanation:
Staging is the extent of spread of tumor within the patient.
The American Joint Committee on Cancer (AJCC) divides all cancers into Stages 0 - IV, incorporating into each stage several TNM (tumor/node/metastasis) stages usually with the same prognosis.
Staging is essential in determining the patient prognosis.
The approximate 5-year survival rate for colorectal cancer patients of all stages is 64.4% (In the United States) and survival is inversely related to stage.
Surgery usually provides the only curative option for patients diagnosed with Stage IV colon cancer.
Mendel studied a total of seven traits of garden peas. His experiments were successful because the pairs of factors for the traits he studied were on seed shape<span>, flower </span>color<span>, </span>seed coat tint<span>, </span>pod shape<span>, unripe </span>pod color<span>, flower location, and plant height</span>
Answer: The right answer is -
A) Gene flow
Explanation:
Gene flow is a process of gene migration or the transfer of gene variant (also called allele, which is responsible for genetic variation in population) from one population to another population.
As a consequence of gene migration, new alleles are introduced or added in the already existing population, thereby increasing genetic diversity.
Thus, option A) is the right answer.
Answer:
Since there are many factors that can produce a mutation, the event that would be most likely to cause a mutation is a nucleotide is inserted into a DNA strand.
Explanation:
A genetic mutation involves an alteration of the DNA that leads to a defect in protein synthesis and a structural or functional alteration of an individual.
Of all the factors that can produce a mutation, the insertion of one or two nucleotides into the DNA strand produces a point mutation, or molecular mutation, of the insertion type.
<em> The other options are not correct because the processes of </em><em><u>mRNA traveling out of the nucleus</u></em><em>, </em><em><u>mRNA releasing from the DNA strand</u></em><em> or </em><em><u>enzymatic transcription of mRNA</u></em><em> in the nucleus can carry over a mutation produced in the DNA, but they are not mutation-producing factors.</em>
It means that gold weighs more than water technically and gold is more closely compacted in substance then water is