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What regarding control of the lac operon and lactose utilization in bacteria is false?
Bacteria preferentially utilize lactose as a carbon source.
Is the following true or false rna editing occurs in the cytoplasm of the cell?
This is True! RNA editing is different than pre-mRNA processing, which takes place in the nucleus: Processing includes the removal of the introns (splicing), cleavage at the poly A site, and poly-adenylation. Then RNA translation is effected at the Cytoplasmic Ribosomes.RNA editing, which is different, has been shown to occur in the cytosol, the nucleus, and inside the mitochondria.
Is it true or false saturated warm air contains more water vapor than saturated cool air?
false
The inner core contains genetic material true or false?
False. The inner core of the Earth is composed of solid iron and nickel, while genetic material is found in the nucleus of cells.
A carbonated beverage that contains carbon dioxide gas in a solution is an exampple of a liquid-gas system... True or False?
True. A carbonated beverage is a liquid-gas system because it contains dissolved carbon dioxide gas in the liquid beverage.
What regarding control of the lac operon and lactose utilization in bacteria is false?
Bacteria preferentially utilize lactose as a carbon source.
Is the lac operon the only example of genes regulated by repressor proteins?
No, the lac operon is not the only example of genes regulated by repressor proteins. There are many other gene regulatory systems where repressor proteins play a role in controlling gene expression. Examples include the trp operon, the ara operon, and the gal operon in bacteria.
Which of the following statements regarding cDNA libraries is false?
a. They are usually double stranded DNA. b. They are composed of DNA synthesized with the use of reverse transcriptase. c. They are composed of DNA synthesized from an mRNA template. d. They contain introns and exons. e. They contain DNA that is complementary to the mRNA from which it was synthesized.
What are introns and pseudogenes Are they the same?
Introns and pseudogenes are not the same.An intron is a segment of DNA that "intrudes" into or "interrupts" a coding stretch of DNA. Many genes in humans have introns, but bacteria seem to have none. To take an extreme example, the human dystrophin gene has 79 exons (separate coding segments) spread over more than 2.3 million base pairs.A pseudogene is a DNA segment that resembles a functional (coding) gene, but does not itself code for a gene product. It seems likely that pseudogenes arise when a gene is copied within the genome, and one of the copies drifts away from the functional sequence. "Pseudogene" literally means "false gene".
True or false neither bone nor cartilage contains capillaries?
False, bone contains capillaries.
A ray contains no endpoints?
A ray has no endpoints true or false
In a two column proof the left column contains series of deductions?
False
In two column proof the right column contains a series of deductions?
False
True or false the troposhere contains more than half the earths atmosphere?
False
Is the following sentence true or false an area contains only one habitat?
false
True or false if a nucleic acid contains uracil it is DNA?
This is false a nucleic acid that contains uracil is not DNA. Uracil is a nucleobase that is found in RNA.
In goemety True or false in two column proof the right column contains a series of deduction?
False
