Compare and contrast the following three terms: polyploidy, aneuploidy, and nondisjunction. Identify and briefly
discuss examples of each of these conditions. What will be an ideal response?
Polyploidy is the condition in which an individual has multiple chromosome sets and is rare
in animals, although common in plants (and linked with speciation events). Aneuploidy is a genetic abnormality involving the presence or absence of one chromosome. This is likely the
result of nondisjunction and includes Trisomy 21 (Down syndrome) and Turner syndrome (a
monosomy). Nondisjunction is the condition in which homologous chromosomes fail to
separate during anaphase I of meiosis and is linked to the conditions mentioned in the
previous sentence.
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In the context of biodiversity, genetic diversity consists of
A. all the alleles and transcription factors within a species B. the amount of genetic variation that occurs within and between populations C. the amount of genetic variation that occurs in an individual D. the amount of genetic variation that occurs between species E. the amount of genetic variation that occurs within and between species
Interference competition and exploitative competition are both examples of ____
a. coevolution b. mimicry c. interspecific competition d. intraspecific competition e. parasitism
Which of the following is a technology that can be used to identify the DNA to which a protein binds?
A. RNA-seq and microarray analysis B. PCR and RT-PCR analysis C. Isoelectric focusing and 2D gel electrophoresis analysis D. ChIP-Seq analysis
________ are chemical substances produced in small quantities in one part of an organism and then transported to another part of the organism, where they bring about physiological responses.
A. Glycoproteins B. Photosynthates C. Pulvini D. Heat shock proteins E. Hormones