Telomeres are found at the end of chromosomes to protect
genes from reduction during replication
of chromosomes, especially during meiosis
or mitosis. They are composed of repetitive sequences
that do not code for protein. Telomeres become
reducted <span>especially due</span> to the inability of the lagging strand to be completely replicated to the end of the chromosome. However, while
the telomeres become shorted with every
replication, the telomeres are usually slightly elongated by telomerase reverse
transcriptase.
Answer:
Explanation:
because a proton gradient is necessary over the inner mitochondrial membrane during oxidative phosphorylation for ATP production, ATP production will decease if gramicidin is added because the inner mitochondrial membrane will become permeable and the protons will be able to move in and out, there will be no electrochemical gradient left to drive ATP production. Electron transport will not be altered because it is dependent on the availability of NADH and FADH2. proton pumping also will remain the same but it will be useless because the protons can go back and forth
Answer:
b: many genes code for RNAs that function directly in the cell
Explanation:
<em>The central dogma</em> theory describes the basic framework for gene expression in living organisms. Genetic information from DNA is encoded or transcribed as RNA which then becomes translated as proteins.
The processes that take place for gene to be successfully expressed are;
- Replication
- Transcription
- Translation
<em>Replication</em> is a process whereby DNA makes a copy of itself to be distributed in daughter cells during cell division.
<em>Transcription</em> is the process whereby genetic information in DNA is encoded as RNAs. The RNAs are short-lived as they are quickly utilized in protein synthesis or <em>translation </em>process.
Hence, the RNAs do not function directly in the cells but mere intermediaries in the synthesis of proteins.
<em>The correct option is b.</em>
C. Sedimentary Layers, sedimentary rocks are created as a result of high pressure :)
I hope this helped!
