Principles of Biology Exam Unit 3 Quizzes

Why is it important for the chromosomes to condense during prophase of mitosis?

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Why is it important for the chromosomes to condense during prophase of mitosis?

it facilitates movement of the chromosomes

The overall "goal" of mitosis is to produce:

genetically identical daughter cells when they are needed

How are sister chromatids and homologous chromosomes different from each other?

Homologous chromosomes contain the same genes but may have different alleles of a particular gene. Sister chromatids are identical copies of each other produced during DNA replication.

the MPF protein complex turns itself off by

activating a process that destroys cyclin

Each of the following is a common feature of cancer cells EXCEPT

density dependent inhibition

the function of the microtubules of the spindle fibers during mitosis is to:

move the chromosomes around the cell

chromosomes align

sister chromatids are separated, and the two new chromosomes move to opposite poles of the cell

A black guinea pig crossed with a white guinea pig produced 5 black offspring. When the same white guinea pig was crossed with a second black guinea pig, 4 black and 3 white offspring were produced. What genetic explanation would apply to these data?

white=recessive Black=dominant

A heterzygous indivual:

has two different alleles of a gene `