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Bio 114 Binghamton Test 1 Study Questions and Correct Answers £7.78   Add to cart

Exam (elaborations)

Bio 114 Binghamton Test 1 Study Questions and Correct Answers

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  • Module
  • BIO 114
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  • BIO 114

Contrivance an adaptation that is a results of the modification of a previous ancestor Adaptation A trait that helps an organism survive and reproduce Exaptation evolutionary adaptation of an existing structure for a completely new purpose Vestigial Trait A trait inherited from a common ancestor...

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  • August 11, 2024
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  • Exam (elaborations)
  • Questions & answers
  • BIO 114
  • BIO 114
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Bio 114 Binghamton Test 1 Study
Questions and Correct Answers
Contrivance ✅an adaptation that is a results of the modification of a previous ancestor

Adaptation ✅A trait that helps an organism survive and reproduce

Exaptation ✅evolutionary adaptation of an existing structure for a completely new
purpose

Vestigial Trait ✅A trait inherited from a common ancestor but is no longer used

Dipliod cell ✅cell that has 2 copies of each chromosome, one from egg, one from
sperm (46)

Hapliod ✅having a single set of unpaired chromosomes, one egg (23) or on sperm
(23)

Gametes ✅reproductive cells

Crossover ✅exchange of genetic material between non-sister chromatids

Meiosis ✅cell division results in four daughter cells each with half the number of
chromosomes of the parent cell. (sexual reproduction)

Mitosis ✅cell division in which the nucleus divides into nuclei containing the same
number of chromosomes

Nondisjunction ✅failure of a pair of homologous chromosomes or sister chromatids to
separate normally during nuclear division

Trisomy ✅an extra copy of a chromosome present in nuclei

Genetric drift ✅change in allele frequency within a pop overtime

Gene flow ✅transfer of genetic material from one pop to another

Law of Segregation ✅alleles separate into gametes where each gamete contains one
allele of each gene

Law of independent assortment ✅pair of alleles that occur on different chromosomes,
will behave independently of each other

, Recombination ✅the genetic process by which one chromosome breaks off and
attaches to another chromosome during reproductive cell division

Non-recombinant ✅An offspring whose combination of traits has not changed from the
parental generation.

Cladistics ✅comparing only recently derived traits to determine relatedness, rather
than all traits

Allopatric speciation ✅the process of speciation that occurs with geographic isolation

Sympatric speciation ✅The formation of new species due to preference

Phylogentic species concept ✅relatedness is determined by similarity in traits due to a
common ancestor

Morphospecies concept ✅determine species by physical similarities

Plietropy ✅single genes can affect multiple characteristics

Polygenetic ✅two or more genes contribute to the phenotypic expression of a single
characteristic

Epigenetic effects ✅environmental influences on gene expression

Sexual dimorphism ✅Differences in physical characteristics between males and
females of the same species.

Assotative mating ✅an individual is more likely to mate with another that is similar in
phenotype to itself

Bottleneck effect ✅a reduction in the genetic diversity of a population caused by a
reduction in its size

Paraphyletic group ✅composed of some but not all members descending from a
common ancestor

Phenetics ✅classification based on degree of overall similarity between individuals

Prezygotic isolation ✅prevents individuals of different species from mating

Postzygotic isolation ✅occurs after fertilization

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