AnswersFL-2000310-Biology 1Unit Test

Unit Test — Unit test Answers

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Consider the classification levels of a human. EukaryaAnimaliaChordataMammaliaPrimatesHominidaeHomosapiensWhich is the most specific taxonomic level in the classification system above?

A
sapiens
B
Homo
C
Hominidae
D
Primates
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Which best describes the different modes of bacterial reproduction?

A
In genetic recombination, two new genetically identical cells are produced.
B
In conjugation, a special sex pilus is required to connect two bacterial cells.
C
In transduction, a bacterium exchanges a piece of its own DNA with another from the environment.
D
In transformation, bacterial DNA is transferred from one bacterium to another by a replicating virus.
23

There are four steps in bacterial conjugation. The second step is missing in this list.1. Special sex pilus connects two cells.2.3. Each cell makes a complementary DNA strand.4. The cells separate.Which is the missing step for the process of conjugation described?

A
Two new, identical cells are produced.
B
The cell membrane elongates and pinches off.
C
Some DNA moves from one cell to another.
D
A DNA molecule attaches to the cell membrane.

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