Which of the following is NOT a step in bacterial cell division?
a. Disappearance of nuclear envelope
b. Splitting apart of two new daughter cells
c. Cell elongation
d. Replication of the genetic material
Answer: a. Disappearance of nuclear envelope
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In some families, members inherit a mutant allele that causes a(n) ____________________ to cancer
Fill in the blank(s) with correct word
Meristems, regions of unspecialized cells that give rise to new plant parts, exist in all extant plant groups
a. True b. False
Which term describes any mechanism that compensates for differences in the number of copies of genes due to the different chromosome constitutions of males and females?
What will be an ideal response?
In estimating the effect of price on sales (Salesi = ?0 + ?1Pricei + Ui), you are attempting to find an instrumental variable that will solve the endogeneity problem caused by the confounding factor of number of competitors being within Ui, which is correlated with price. Which of the following statements would suggest that wholesale costs would satisfy the exogenous condition to be a potential instrument variable?
A. Wholesale costs are uncorrelated with price. B. Wholesale costs are uncorrelated with number of competitors. C. Wholesale costs are uncorrelated with sales. D. Wholesale costs are correlated with price.