Maternal effects are cases of extrachromosomal inheritance in which the genotype of the mother influences the phenotype of her immediate offspring in a non-Mendelian manner. Provide a rationale for the molecular basis of a maternal effect
What will be an ideal response?
During development of the egg, females provide numerous nutritional and informational substances, which direct and support early embryonic development. These substances are often in the form of transcription factors, receptors, mRNA, and proteins, although other substances are also likely (substrates and products). In some cases, these maternally supplied substances override the actual genotype of the zygote and produce a phenotype much like the genotype of the mother.
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Which of the following nucleotides in the anticodon can allow for "wobble" in translation?
A) uracil B) thymine C) guanine D) inosine E) carboxycytosine
Which of the following organelles possess DNA separate from nuclear DNA that can be used to trace genealogies of humans?
a. ribosomes b. chloroplasts c. mitochondria d. lysosomes
Apply what you know about the fundamental niche and the realized niche. How does this apply to the human species? Does competitive exclusion appear to apply to us?
What will be an ideal response?
Most disinfectants work better in ________ solutions.
a) cold b) warm c) acidic d) organic