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kompoz [17]
3 years ago
14

All of the following techniques involve hybridization between single-stranded nucleic acid molecules except:

Biology
1 answer:
Savatey [412]3 years ago
8 0

Answer:

RFLP analysis.

Explanation:

RFLP (Restriction fragment length polymorphism ) may be defined as a molecular technique used to determine the location of a particular gene in the DNA sequences. The individuals among the population can be easily identified by RFLP analysis.

The restriction enzyme is used for the digestion of DNA sample. The restriction fragments are then visualized by running the fragments on gel electrophoresis. The hybridization between single stranded nucleic acid is not involved in the RFLP.

Thus, the correct answer is option (1).

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What is the function of prolactin and progestrone?
chubhunter [2.5K]

Explanation:

Prolactin is a protein hormone of the anterior pituitary gland that was originally named for its ability to promote lactation in response to the suckling stimulus of hungry young mammals.

Progesterone is a hormone released by the corpus luteum in the ovary. It plays important roles in the menstrual cycle and in maintaining the early stages of pregnancy.

8 0
3 years ago
Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi
Elodia [21]

Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

4 0
3 years ago
Anti-rna antibodies are often present in individuals having an antinuclear antibody immunofluorescent pattern that is
meriva
Answer is: Nucleolar
5 0
2 years ago
Binary fission is cell division in prokaryotic organisms (bacteria), which have no nucleus. In addition, prokaryotic cells typic
lilavasa [31]

Explanation:

  • Binary fission is simple ad rapid compared to mitosis that involves complexities like breaking down the nuclear membrane – which prokaryotes do not have – and replicating the many chromosomes – when prokaryotes have only one.
  • Replication of the circular DNA in prokaryotes happens as the process of division of the cell happens. In mitosis, the replication of all the genetic material must finish before the process of cytokinesis begins.
  • Spindle fibers are not formed in binary fission while they are significant in mitosis in drawing different chromosomes to different poles of the cell before cytokinesis.

6 0
3 years ago
Transcribe the following DNA sequence by listing the corresponding mRNA sequence. DNA: CGATTA CAG mRNA: ?
Bas_tet [7]

The corresponding mRNA sequence would be: GCUAAU GUC

4 0
3 years ago
Read 2 more answers
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