Protein synthesis can be increased by <span>a) turning on gene expression.</span>
Answer: Option B) is toxic to red blood cells.
Explanation:
Partial hydrolysis of lecithin by lecithinases (enzyme in black widow spiders and snakes venom) causes the removal of only one fatty acid to yield lysolecithins, which when subjected to the bloodstream by sting as a result of spider bite causes the rupture of red blood cells.
Thus, the mechanism is that it is toxic to red blood cells.
<span>This would be a competition where scarcity of sources of food cause these two species to fight over what is available and their survival instinct kicks in, or just because they both hunt the same prey. These two animals are also very territorial.</span>
This is an example of <u>recessive epistasis</u>.
Here the presence of recessive allele ee at one locus inhibits the phenotypic effect of genes at the B locus.
As it is mentioned in the question above the ee__ genotype develops into a yellow lab.
Dominant B gene can produce the black coat color phenotype only when a dominant allele E is also present.
If the genotype is B_ee, then yellow coat color would be produced.
Therefore the recessive allele e in homozygous ee form masks the effect of the dominant B allele.
Recessive epistasis is the phenomenon in which the expression of one gene pair is depending on some other gene pair. In different words, one gene must be grown to become one for any other gene to be expressed.
Learn more about recessive epistasis here brainly.com/question/25217589
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