rRNA sequence comparisons are useful for determining evolutionary relationships
Indicate whether this statement is true or false.
TRUE
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What information is used to calculate the age-specific fertility rate, mx?
A. the net reproductive rate of females B. total number of offspring born to females within a reproductive age class C. the per capita growth rate of all females D. number of female offspring born to females within a reproductive age class E. the average age of first reproduction for females
Answer the following statements true (T) or false (F)
1) If the p value corresponding to a given ?2 value and number of degrees of freedom is lower than 0.05, then the null hypothesis is rejected and it can be said with some confidence that the two genes being evaluated are linked. 2) Genes that are not syntenic are not linked. 3) The genetic distance from one end of a linkage group and the other may exceed 50 m.u. because the distances between many gene pairs are added together to make the map. 4) Sectors with a different phenotype in an otherwise uniform yeast colony may be evidence of mitotic recombination. 5) Large sectors suggest a mitotic recombination event late in the growth of a yeast colony. 6) A coefficient of coincidence of 0.5 in a region of three genes means that half as many double crossovers were observed as would have been expected if crossovers in the two intervals were independent.
You isolate the hemicellulose from a parenchyma cell. You correctly predict that the hemicellulose
will contain which of the following in greatest amount? a. cellulose b. xyloglucan c. lignin d. ?-galacturonic acid e. amino acid derivatives
Which parts of a flower are typically the most leaflike?
a. the receptacles b. the carpels c. the sepals d. the petals