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Biology 100 Questions and Correct Answers/ Latest Update / Already Graded

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Biology 100 Questions and Correct
Answers/ Latest Update / Already Graded
Which is a scientific hypothesis

Ans: Regular excerise may reduce our risk of catching cold


In order to eliminate subject bias, a ______ is given to the control group
subject

Ans: Placebo


Which of the following is NOT an example of convergent evolution?

Ans: The bats wing and human arm


Which of the following statements would be true of two species that
have descended from the same common ancestor

Ans: Those species will have homologous structures


Which of the following is the most reliable way to test evolutionary
relationship among living organisms

Ans: Analysis of DNA sequence



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, Page |2

Which of the following is an example of a vestigial trait

Ans: The human tailbone


Sister chromatids arise during _____ and are separated during ____

Ans: S phase, mitosis


Most neuronal cell type cease dividing during our development. What
phase of the cell cycle are most of your neurons in?

Ans: G1


After replication but before mitosis, it is necessary to _____ the DNA

Ans: Condense


During the G2 stage of the cell cycle, how much DNA does a cell have
(compared to a non dividing cell?)

Ans: Twice the usual amount


The are proteins in the cell whose job it is to help the cell divide when
needed. These genes the encode these proteins are called

Ans: Proto-oncogenes

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