Chapter 11 Study Guide - Part 1 Question Preview (ID: 35804)


Biology - Chapter 10 Study Guide - Part 1. TEACHERS: click here for quick copy question ID numbers.

Crossing-over occurs:
a) during prophase II
b) during fertilization
c) during prophase I
d) at the centromere

The difference between anaphase of mitosis and anaphase I of meiosis is that:
a) the chromosomes line up at the equator in anaphase I
b) centromeres do not exist in anaphase I
c) chromatids do not separate at the centromere in anaphase I
d) crossing-over occurs only in anaphase of mitosis

The exchange of segments of DNA between the members of a pair of chromosomes:
a) ensures that variations within a species never occur
b) acts as a source of variations within a species
c) always produces genetic disorders
d) is called genetic crossing

When crossing-over takes place, chromosomes:
a) mutate in the first division
b) produce new genes
c) decrease in number
d) exchange corresponding segments of DNA

How many chromosomes are in the body cells of an organism that has a haploid number of 8?
a) 4
b) 8
c) 12
d) 16

The diploid number of chromosomes in a human skin cell is 46. The number of chromosomes found in a human egg cell is:
a) 46
b) 92
c) 23
d) 12.5

A haploid cell is one that:
a) has two homologues of each chromosome
b) is designated by the symbol 2n
c) has chromosomes found in pairs
d) has one set of chromosomes

Female is to XX as ::
a) female is to gametes
b) female is to eggs
c) male is to YY
d) male is to XY

In humans, the male determines the sex of the child because males have:
a) two X chromosomes
b) one X and one Y chromosome
c) two Y chromosomes
d) 46 chromosomes

The X and Y chromosomes are called:
a) extra chromosomes
b) homologous chromosomes
c) sex chromosomes
d) autosomes

Normal human males develop from fertilized eggs containing which of the following sex chromosome combinations?
a) XY
b) XX
c) XO
d) OO

Homologous chromosomes are pairs of chromosomes containing genes that code for:
a) different traits
b) the same traits
c) DNA
d) sex

Sexual reproduction includes:
a) budding
b) fragmentation
c) binary fission
d) fertilization

In humans, gametes contain:
a) 22 autosomes and 1 sex chromosome
b) 1 autosome and 22 sex chromosomes
c) 45 autosomes and 1 sex chromosome
d) 1 autosome and 45 sex chromosomes

Binary fission:
a) occurs when two cells collide with each other
b) produces excess energy
c) creates new species
d) is the process by which bacteria reproduce

The process of producing offspring is called reproduction and can be:
a) eukaryotic or prokaryotic
b) asexual or sexual
c) zygotic or gametic
d) haploid or diploid

The simplest and most primitive method of reproduction is:
a) sexual
b) diploid
c) haploid
d) asexual

Budding is an example of:
a) endosymbiosis
b) asexual reproduction
c) meiosis
d) sexual reproduction

Which of the following is not a type of asexual reproduction?
a) budding
b) fragmentation
c) binary fission
d) fertilization

Hydras reproduce by:
a) budding
b) fragmentation
c) binary fission
d) parthenogenesis

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