Life Science 15 Phelan Midterm 1 Exam Study Guide with Complete Solutions
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Course
LS15
Institution
University Of California - Los Angeles
Life Science 15 Phelan Midterm 1 Exam
Study Guide with Complete Solutions
evolution - Answer️️ -a change in allele frequencies over time
allele - Answer️️ -one variant of a gene
gene - Answer️️ -section of DNA instructing how to produce a trait
natural selection - Answer️️ -var...
sexual selection - Answer✔️✔️-traits that are more desirable to the opposite
sex are selected for. trade-offs
norm of reaction - Answer✔️✔️-all possible different phenotypes for a given
genotype when raised under all possible conditions. The steeper the norm
of reaction the larger a change in x will yield a change in y. and vice versa.
mendel - Answer✔️✔️-inheritance of pea plants
homologous pair - Answer✔️✔️-two versions of the same gene (one from
father, one from mother)
karyotype - Answer✔️✔️-picture of all chromosomes in a cell
mendels' law of segregation - Answer✔️✔️-a gamete receives only one allele
from the pair of alleles possessed by an organism
law of independent assortment - Answer✔️✔️-the allele you pass for one
trait has no effect on which you pass for another trait
test cross - Answer✔️✔️-a cross between an organism whose genotype for a
certain trait is unknown and an organism that is homozygous recessive for
that trait so the unknown genotype can be determined from that of the
offspring
methods of sex determination - Answer✔️✔️-male/female heterogamety,
ploidy, incubation temperature
why does kindness occur? - Answer✔️✔️-shared genes/kin selection,
reciprocal altruism
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