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Exam (elaborations)

Bio 301 Exam 2 with answers.

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Bio 301 Exam 2 with answers.

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BIO 301
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BIO 301

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Bio 301 Exam 2 with answers
|\ |\ |\ |\ |\




Genetic information is contained in ________________- a
|\ |\ |\ |\ |\ |\ |\



molecule composed of two strands that are wound
|\ |\ |\ |\ |\ |\ |\ |\



together in a shape known as a double helix. - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔DNA |\




Long strands of DNA are wound around proteins into
|\ |\ |\ |\ |\ |\ |\ |\ |\



compact structures called ________________. - CORRECT
|\ |\ |\ |\ |\ |\



ANSWERS ✔✔chromosomes |\




Different forms of a particular gene are referred to as
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



________________. - CORRECT ANSWERS ✔✔alleles |\ |\ |\ |\




________________ traits reflect the effects of alleles from |\ |\ |\ |\ |\ |\ |\ |\



several genes. - CORRECT ANSWERS ✔✔polygenic
|\ |\ |\ |\ |\




When some genes only affect a single trait, such as size,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



other genes affect multiple traits, an effect referred to as
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



________________. - CORRECT ANSWERS ✔✔pleiotropy |\ |\ |\ |\




An individual with two different alleles of a particular
|\ |\ |\ |\ |\ |\ |\ |\ |\



gene is said to be ________________. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔heterozygous

, An individual with two identical alleles is said to be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



________________. - CORRECT ANSWERS ✔✔homozygous |\ |\ |\ |\




When both alleles contribute to the phenotype the alleles
|\ |\ |\ |\ |\ |\ |\ |\ |\



are said to be ________________. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\



✔✔codominant


The allele that is expressed is ________________. -
|\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔dominant |\ |\




The allele that is not expressed is ________________. -
|\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔recessive |\ |\




A ________________ ________________ consists of the alleles
|\ |\ |\ |\ |\ |\ |\



from all of the genes of every individual in a population. -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔gene pool |\ |\ |\




The chromosomes in a haploid gamete are a
|\ |\ |\ |\ |\ |\ |\ |\



________________ ________________ of the chromosomes in |\ |\ |\ |\ |\ |\



the parent's diploid cells, meaning that they can be any
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



combination if chromosomes that the parent received |\ |\ |\ |\ |\ |\ |\



from its mother and father. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\



✔✔random assortment |\
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