Ch 10 Exam
Which of the following statements about aneuploidy is NOT true?
Aneuploidy is the movement of a chromosome segment from one chromosome to another, nonhomologous chromosome.
Which of the following pairs is mismatched?
Inversion - the presence of a chromosome segment more than once in the same chromosome.
Which phase of meiosis is characterized by the haploid number of duplicated chromosomes at the metaphase plate?
Meiosis II metaphase II
Which of the following statements about sexual reproduction is NOT true?
Sexual reproduction produces gametes through mitosis, followed by cytokinesis.
The homologues of each bivalent separate and move to opposite poles during _____.
anaphase I
Sexual reproduction contributes greatly to the process of _____.
evolution
The combining of chromosomes from genetically different gametes occurs during _____.
fertilization
The diploid number of chromosomes is restored after _____ so that an animal's body cells contain the diploid number of chromosomes.
fertilization
At the completion of meiosis II in males, there are _____ daughter cells.
four haploid
A primary spermatocyte with 46 chromosomes will undergo meiosis and yield _____.
four sperm with 23 chromosomes each
The haploid cells produced by animals during meiosis are:
gametes
All of the following are functions of mitosis EXCEPT:
gametogenesis
When a primary spermatocyte undergoes meiosis I, two _____ secondary spermatocytes are produced.
haploid
Which of the following results in diploid daughter cells if the parent cell is diploid?
mitosis
In females, meiosis is specifically referred to as _____, which occurs in the ovaries and produces eggs.
oogenesis
Turner's syndrome is _______.
produced by nondisjunction, with an XO genotype
Crossing over between nonsister chromatids occurs during _____.
prophase I
Which is true of both meiosis II and mitosis?
separation of sister chromatids
Once replicated, a chromosome is composed of two identical parts called _____.
sister chromatids
Down Syndrome is an example of _______.
trisomy
