The presence of a mutant lac repressor that could not bind lactose would result in no transcription even when lactose was present because the mutant repressor would remain bound to the lac operator
The transcription of lac operator is controlled by the lac repressor. When lactose is present, the lac repressor normally will bind to the lactose, removing itself from the lac operator so it could be transcripted.
In this case, the mutation makes the lac repressor keep binding to the lac operator so the result would be no transcription even when lactose present.
Answer:
what journey do u mean lol
Polysaccharides have 1 sugar
disaccharides have 2 sugars
monosaccharides have a chain of sugars
Answer: option B) A gene can take different forms called alleles.
Explanation:
An allele is one of the two or more different forms of the same gene.
For example, a trait such as seed shape is represented expressed a gene, but with allele of "RR" (round seeds) and "rr"(wrinkled seeds) observed physically by the farmers.
Thus, the correct answer is that a gene can take different forms called alleles.
Answer:
The most correct statement is d. Ganglia associated with afferent nerve fibers contain cell bodies of sensory neurons.
Explanation:
Ganglia are considered a group of nerve cell bodies and are responsible for carrying nerve impulses. The sensory nerve ganglion collects and modulates the sensory information, and constitutes the deposits of the neuronal somas of the primary afferent fibers of the sensory system. This consists of afferent nerve cell bodies, efferent nerve cell bodies, and neuronal axons. It acts by receiving signals from the periphery and sending them to the brain, that is, it has an afferent function. Afferent fibers transmit sensory stimuli from the skin, mucous membranes and deep structures, for this, ganglia are constituted by abundant distinctive neuronal connections, which are responsible for receiving these signals and fulfilling their afferent function.