Agonistic behavior
A) usually causes serious injury to one or both of the combatants.
B) increases the number of individuals who mate.
C) is typically used to determine access to food, mates, or territories.
D) is rare among vertebrates.
Answer: C
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Nondisjunction of X chromosomes may occur during meiosis 1 of oogenesis to form 2 types of eggs. If normal sperm fertilize these two types of egg, which of the following are possible sex chromosome complements?
A. XX and XY B. XYY and XO C. XYY and YO D. XXY and XO E. XXX and XYY
Some genes with a number of trinucleotide repeats significantly above normal produce a mutant
phenotype. Indicate whether the statement is true or false.
In a replication fork, how do the leading and lagging strands differ?
a. In the lagging strand, new DNA is synthesized 3?–5?. b. Each strand is replicated by a unique type of polymerase. c. The lagging strand is replicated discontinuously. d. DNA polymerase proceeds more slowly on the lagging strand. e. The lagging strand is subject to more error and requires more repair.
Suppose you have a random sample of employees in your company and their tenure. The sample mean of this sample is 4.2 years and the sample standard deviation is 4.5 years. How would knowing that the random sample was of size 100 instead of 60 change the p-value of the hypothesis test?
A. The p-value will be smaller for 100 than 60. B. The p-value will be biased for 100. C. The p-value will be biased for 60. D. The p-value will be larger for 100 than 60.