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Vadim26 [7]
3 years ago
5

Which of the following statements about screening for prostate cancer is most accurate?

Biology
1 answer:
professor190 [17]3 years ago
5 0

Answer:

d. Digital rectal examination and PSA testing have been proven ineffective.

Explanation:

The prostate is a small gland in the male reproductive system and is usually the shape and size of a walnut. Current methods to determine if a prostate has become cancerous include a physical exam (known as a digital rectal exam or DRE), magnetic resonance imaging, a biopsy, or tests to determine prostate-specific chemical antigen (PSA) levels in the blood.

Prostate cancer is considered a cancer of the elderly, since most cases are registered in men over 60 years. The most effective techniques for screening for this cancer are annual screening exams - which include the blood-drawn PSA test and digital rectal touch - are recommended for all men aged 50 and over.

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3 years ago
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The DNA sequence that produced the mRNA sequence uracil, guanine, cytosine, guanine adenine uracil adenine adenine
vesna_86 [32]

Answer:

The DNA sequence that produced the mRNA sequence uracil, guanine, cytosine, guanine adenine uracil adenine adenine during transcription is adenine, cytosine, guanine, cytosine, thymine, adenine, thymine, thymine.

Explanation:

Transcription of DNA into messenger RNA (mRNA) is a process in which the specific nucleotide sequence is transferred from one molecule to another, through the synthesis of mRNA molecules from a DNA strand.

The complete transcription process is done by nitrogenous base complementarity, where mRNA receives the sequence of complementary bases according to the DNA sequence:

  • <em>Adenine</em><em> is complemented with uracil, since in RNA the thymine is substituted by this uracil. </em>
  • <em>Thymine</em><em> is complemented with adenine. </em>
  • <em>Cytosine</em><em> is complemented with guanine. </em>
  • <em>Guanine</em><em> is complemented with cytosine. </em>

Thus an <u>uracil mRNA sequence, guanine, cytosine, guanine adenine uracil adenine U-G-C-G-A-U-A-A comes from a DNA sequence adenine, cytosine, guanine, cytosine, thymine, adenine, thymine, thymine or A-C-G-C-T-A-T</u>.

6 0
3 years ago
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8 0
2 years ago
Transcribe the information in DNA to mRNA. which RNA nucleotide can pair with the Thymine(T)at the beginning of the strand. Drag
Shalnov [3]

Answer:

Adenine  can go with Thymine

Explanation:

6 0
2 years ago
During which process do plants use carbon dioxide?
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Answer:

<h2><em>photosynthesis</em></h2>

<em>in</em><em> </em><em>this</em><em> </em><em>process plants use carbon dioxide</em><em />

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