Genetics II Jeopardy: Linked Genes, Genetic Mapping, and Sex Chromosomes
Explore the world of genetics with Genetics II Jeopardy, covering topics such as linked genes, genetic mapping, sex chromosomes, and inheritance patterns. Discover the significance of gene location on chromosomes, the concept of recombination frequency, and the role of specific genes like SRY in male development. Delve into intriguing genetic phenomena like calico cats, hemophilia, and Barr bodies, unraveling the mysteries of inheritance and genetic traits.
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Presentation Transcript
GENETIC II Jeopardy Category 1 Category 2 Category 3 Category 4 Category 5 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50
The closer on the chromosome that genes are, the ____ the chance of crossing over smaller Picture 6
The maximum value of frequency that two genes far apart from each other will recombine is.. 50% Picture 5
DAILY DOUBLE Map these! A-B=50% B-C=30% A-C=20% A-D=12% D-B=38% A (12) D (8) C ((30) -B Picture 5
Why are linked genes inherited together? they are on the same chromosome Picture 5
What can genetic maps from crossing over frequencies NOT show? the specific physical position of a gene on the chromosome Picture 5
Describe what SRY is a gene on the Y chromosome that triggers male development Picture 5
Hemophilia, Duchenne have what in common? Sex-linked genes Picture 5
Why are most calico cats female? caused by inactivation of the second X (which most males do not have) Picture 5
Who does the man pass his X linked allele to? (be specific) all of his daughters Picture 5
What could explain a male calico cat? nondisjunction leading to XXY Picture 5
What cells would we usually find Barr bodies in? (be specific) somatic cells of a female Picture 5
If we find THREE Barr bodies in a persons non dividing cell, what must be their genetic makeup? XXXX Picture 5
If non disjunction occurs in only one of the two cells forming in Meiosis II, what would the chromosome numbers be in the four gametes formed (use n s) DAILY DOUBLE!!! One with n+1, one with n-1, two with n Picture 5
A cell with 2n+1 chromosomes is what term? trisomic (a specific type of aneuploidy) Picture 5
What chromosome mistake leads to genes being missing? deletion deletion Picture 5
A piece of a chromosome breaks and rejoins a non homologous chromosome translocation Picture 5
Aneuploid means abnormal number of chromosomes. What causes this? nondisjunction Picture 5
What type of aneuploidy means one chromosome rather than the normal two? monosomic Picture 5
When a chromosome breaks and then reattaches in a reverse orientation to the same chromosome inversion Picture 5
If a human is female but shows no Barr bodies, what disorder might she have? Turner syndrome (X only) Picture 5
picture of all the chromosomes lined up in order karyotype Picture 5
Which aneuploidy are less serious and less likely to lead to miscarriages? sex chromosome situations (X, XXX, XXY, XYY) Picture 5
What TWO things do all males inherit from their mother? DAILY DOUBLE! X Chromosome Mitochondrial DNA Picture 5
What explains cases in which the gender of the parent from whom an allele is inherited affects the expression of the allele due to certain genes being silenced in the gamete? genomic imprinting Picture 5
What genes do NOT follow Mendelian patterns because they are inherited from the cytoplasm? mitochondrial DNA Picture 5
