chapter12vocabularyquiz05 answers by 2R206m

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									1. The random distribution of the maternal and paternal members of each
homologous chromosome pair to the daughter cells during meiosis is
called ___________ assortment.

     Correct Answer(s):
     a. independent


2. A new cell wall forms between the double membrane of the cell ______
during cytokinesis in plants.

     Correct Answer(s):
     a. plate


3. A ____________ is a type of structural chromosome abnormality that
occurs when two nonhomologous chromosomes exchange parts.

     Correct Answer(s):
     a. translocation


4. ___________ is a phenomenon in which one gene interferes with the
expression of another gene.

     Correct Answer(s):
     a. Epistasis


5. During cell division, chromosomes line up along the ______ plate
before the sister chromatids are pulled to opposite poles of the cell.

     Correct Answer(s):
     a. metaphase


6. Gametes are _________ because they have only one copy of each
chromosome.

     Correct Answer(s):
     a. haploid


7. During ________, sister chromatids move toward opposite poles of the
cell.

     Correct Answer(s):
     a. anaphase


8. The majority of individuals of a species in a natural environment
have the __________ phenotype.
     Correct Answer(s):
     a. wild-type


9. A _______ is used to determine whether an individual is homozygous
dominant or heterozygous.

     Correct Answer(s):
     a. testcross


10. A __________ cross analyzes two individuals that differ in two
traits.

     Correct Answer(s):
     a. dihybrid


11. Individuals that are heterozygous for a recessive disease allele
are called ____________.

     Correct Answer(s):
     a. carriers


12. ___________ alleles are expressed in an individual's phenotype,
even if only one copy is present.

     Correct Answer(s):
     a. Dominant


13. Chromosomes are duplicated during ________ phase of the cell cycle.

     Correct Answer(s):
     a. S


14. Binary _____ is a type of asexual reproduction where a parent cell
splits into two daughter cells.

     Correct Answer(s):
     a. fission


15. _________ genes are located on the same chromosomes and are
inherited together more frequently than would be expected from their
independent assortment in meiosis.

     Correct Answer(s):
     a. Linked
16. ____________ is a pattern of inheritance in which both alleles are
expressed in the phenotype of heterozygotes.

     Correct Answer(s):
     a. Codominance


17. Chromosome nondisjuction leads to a cell that has either gained or
lost one or more chromosomes; this condition is called _______.

     Correct Answer(s):
     a. aneuploidy


18. _____________ chromosomes carry genes for the same traits and are
separated from each other during meiosis I.

     Correct Answer(s):
     a. Homologous


19. The mitotic __________ consists of an array of microtubules
critical for the proper distribution of chromosomes and other cellular
components to the nuclei of the two daughter cells during mitotic
division.

     Correct Answer(s):
     a. spindle


20. The physically observable translation of a genotype is called a
_____________.

     Correct Answer(s):
     a. phenotype

								
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