What kind of phylogenetic tree has a single lineage at the base?

What will be an ideal response?


rooted

Biology & Microbiology

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____________________ is spread by droplets produced when an infected person sneezes or coughs

Fill in the blank(s) with correct word

Biology & Microbiology

In the Hershey and Chase experiment, 32P was used to label ____ and 35S was used to label ____

a. RNA; protein b. protein; DNA c. phospholipids; protein d. protein; phospholipids e. DNA; protein

Biology & Microbiology

In lab, you are asked to label the parts of a sperm cell model. Which of the following would not be observed on the model?

A. flagellum B. cilia C. nucleus D. acrosome E. mitochondrion

Biology & Microbiology

Some flowering plants cannot self-pollinate which increases their tendency to mate with phenotypically different mates, a process called disassortative mating.  What effect would this have on a population in Hardy-Weinberg equilibrium?

A. A decrease in heterozygotes would be observed. B. No change homozygotes or heterozygotes would be observed. C. The population would remain in Hardy-Weinberg equilibrium. D. An increase in heterozygotes would be observed. E. An increase in homozygotes would be observed.

Biology & Microbiology