Questions from Conceptual Biology


Q: 1. Meiosis is a necessary part of sexual reproduction because it

1. Meiosis is a necessary part of sexual reproduction because it ______. a. divides two nuclei into four new nuclei b. reduces the chromosome number for gametes c. gives rise to new alleles 2. Meiosi...

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Q: When DNA replication begins, ______. a. the two DNA

When DNA replication begins, ______. a. the two DNA strands unwind from each other b. the two DNA strands condense for base transfers c. old strands move to find new strands

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Q: Crossing over mixes up _______. a. chromosomes b.

Crossing over mixes up _______. a. chromosomes b. alleles c. zygotes d. gametes

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Q: Crossing over happens during which phase of meiosis? a.

Crossing over happens during which phase of meiosis? a. prophase I b. prophase II c. anaphase I d. anaphase II

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Q: Meiosis ______ the parental chromosome number. a. doubles

Meiosis ______ the parental chromosome number. a. doubles b. halves c. maintains d. mixes up

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Q: Dogs have a diploid chromosome number of 78. How many chromosomes

Dogs have a diploid chromosome number of 78. How many chromosomes do their gametes have? a. 39 b. 78 c. 156 d. 234

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Q: Name one environmental factor that typically influences enzyme function.

Name one environmental factor that typically influences enzyme function.

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Q: In the late 1970s, geologist Walter Alvarez was investigating the composition

In the late 1970s, geologist Walter Alvarez was investigating the composition of the K–Pg boundary layer in different parts of the world. He asked his father, Nobel Prizeâ€...

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Q: The number of species on an island depends on the size of

The number of species on an island depends on the size of the island and its distance from a mainland. This statement would most likely be made by __________. a. an explorer b. a biogeographer c. a ge...

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Q: In the late 1970s, geologist Walter Alvarez was investigating the composition

In the late 1970s, geologist Walter Alvarez was investigating the composition of the K–Pg boundary layer in different parts of the world. He asked his father, Nobel Prizeâ€...

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