WGU C653 Heredity and Genetics exam ACTUAL EXAM QUESTIONS
Heredity and Genetics (C652)(WGU)
WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED)
Study online at https://quizlet.com/_7ztq09
LATEST VERSION 2025!!
1. gene a string of nucleotides within a DNA molecule that is the basic structural and
functional unit of genetics
2. allele this is the term for one of a number of different forms of a gene
3. phenotype physical characteristics of an organism
4. genotype genetic makeup of an organism
5. heterozygous this term describes an organism that has two different alleles for a trait
6. homozygous this term describes an organism that has two identical alleles for a trait
7. dominant describes a trait that covers over, or dominates, another form of that trait
8. recessive an allele that is masked when a dominant allele is present
9. meiosis cell division that produces reproductive cells in sexually reproducing organisms;
one diploid cell containing forty six chromosomes undergoes one round of chro-
mosome replication and two rounds of division to produce four haploid cells each
of which contains one copy of each chromosome
10. Interphase this is the phase during which the chromosomes replicate
11. Prophase I during this phase chromosomes condense and become visible under a micro-
scope, the nuclear envelope disappears, and the spindle becomes organized
12. Metaphase I during this phase paired homologous chromosomes line up at the equator of the
cell with each chromosome attached to spindle fibers from opposite poles of the
cell
13. Anaphase I during this phase the paired chromatids are separated from each other and move
towards opposite sides of the cell
14. Telophase I during this phase the cytoplasm begins to divide resulting in two haploid cells
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, Heredity and Genetics (C652)(WGU)
Study online at https://quizlet.com/_7ztq09
15. Prophase II during this phase the unpaired chromosomes consist of two sister chromatids
joined by a centromere
16. Metaphase II during this phase the twenty three unpaired chromosomes are at the equator
of the cell with spindle fibers from opposite poles of the cell attached to their
centromeres
17. Anaphase II during this phase spindle fibers pull the chromatids apart in both cells
18. Telophase II during this phase the chromosomes uncoil and the nuclear envelope reforms and
the cytoplasm begins to split resulting in four haploid cells
19. crossing over this is the process in which homologous chromosomes exchange portions of their
chromatids during the first prophase and metaphase in meiosis and this allows for
genetic codes to be swapped between homologous pairs of chromosomes
20. Principle of this principle states that members of a gene pair must separate or segregate from
Segregation each other during gamete formation and each gamete receives only one of the
(Mendel's First two genes that control a particular trait
Law)
21. Principle of Inde- this principle states that genes for different traits can segregate independently
pendent Assort- during the formation of gametes
ment
22. incomplete domi- this describes a situation in which one allele is not completely dominant over
nance another allele such as a red flower crossing with a white flower and producing a
pink flower
23. codominance this describes a situation in which both alleles of a gene are fully expressed such
as with blood types
24.
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Heredity and Genetics (C652)(WGU)
WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED)
Study online at https://quizlet.com/_7ztq09
LATEST VERSION 2025!!
1. gene a string of nucleotides within a DNA molecule that is the basic structural and
functional unit of genetics
2. allele this is the term for one of a number of different forms of a gene
3. phenotype physical characteristics of an organism
4. genotype genetic makeup of an organism
5. heterozygous this term describes an organism that has two different alleles for a trait
6. homozygous this term describes an organism that has two identical alleles for a trait
7. dominant describes a trait that covers over, or dominates, another form of that trait
8. recessive an allele that is masked when a dominant allele is present
9. meiosis cell division that produces reproductive cells in sexually reproducing organisms;
one diploid cell containing forty six chromosomes undergoes one round of chro-
mosome replication and two rounds of division to produce four haploid cells each
of which contains one copy of each chromosome
10. Interphase this is the phase during which the chromosomes replicate
11. Prophase I during this phase chromosomes condense and become visible under a micro-
scope, the nuclear envelope disappears, and the spindle becomes organized
12. Metaphase I during this phase paired homologous chromosomes line up at the equator of the
cell with each chromosome attached to spindle fibers from opposite poles of the
cell
13. Anaphase I during this phase the paired chromatids are separated from each other and move
towards opposite sides of the cell
14. Telophase I during this phase the cytoplasm begins to divide resulting in two haploid cells
1/7
, Heredity and Genetics (C652)(WGU)
Study online at https://quizlet.com/_7ztq09
15. Prophase II during this phase the unpaired chromosomes consist of two sister chromatids
joined by a centromere
16. Metaphase II during this phase the twenty three unpaired chromosomes are at the equator
of the cell with spindle fibers from opposite poles of the cell attached to their
centromeres
17. Anaphase II during this phase spindle fibers pull the chromatids apart in both cells
18. Telophase II during this phase the chromosomes uncoil and the nuclear envelope reforms and
the cytoplasm begins to split resulting in four haploid cells
19. crossing over this is the process in which homologous chromosomes exchange portions of their
chromatids during the first prophase and metaphase in meiosis and this allows for
genetic codes to be swapped between homologous pairs of chromosomes
20. Principle of this principle states that members of a gene pair must separate or segregate from
Segregation each other during gamete formation and each gamete receives only one of the
(Mendel's First two genes that control a particular trait
Law)
21. Principle of Inde- this principle states that genes for different traits can segregate independently
pendent Assort- during the formation of gametes
ment
22. incomplete domi- this describes a situation in which one allele is not completely dominant over
nance another allele such as a red flower crossing with a white flower and producing a
pink flower
23. codominance this describes a situation in which both alleles of a gene are fully expressed such
as with blood types
24.
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