Genetics 5

Parent genotype

F1 represents

F2 represents

having the same alleles

cross which change parent genotypes

Cross with homozygous recessive

cross with true breeding parents

cross with two different heterozygous traitis

Mendels law of independent assortent deals with what phase

Phenotype of herozygote is somewhere between both homozygotes

One gene expresses only half of what is needed

XY

XX

+ represents

Female bird

Male hymenoptera

Male grasshopper

Regions on X and Y chomosome important for synapsis

Position of centromere on Y chromosome

Section on X chromosome for antibody production

Gene on Y chromosome responsible for sex determination
a)This gene is a member of which family
b)How long after conception are these genes active

Proteins which binds to DNA and causes sharp bends bringin nonadjacent regions together

Proteins which changes undifferentiated gonads to ovaries/uterus

Protein which changes testosterone to estradiol

Male XY appear female is what condition

Sex linked recessive trait present on a male

X+Y

Failure of chomosomes to separate properly during anaphase 1

Y-linked genes

An inactivated X chromosome

Level of copacton for a barr body

Accounts for fact that males and females have the same concentration of protein from X linked genes

How many days after fertilization does X inactivation occur

Region responsible for X inactivation

RNA from this gene coats the X chromosome and converts to a Barr body

Encodes an antisense RNA that is complementary to Xist RNA

Chooses X chromosom to be inactivated

Organism with tissues of different genotypes

# of organisms with a genotype that expresses a phenotype

Genotype does not express expected phenotype

Degree to which a phenotype is expressed

Allele which results in death at an early stage of development

Multiple alleles

Where fucose is added

Needed to add fucose

I in I^A represents what?

Suggar added by I^A

Sugar added by I^B

Transfers sugars to fucose

Causes agglutination

Th phenotype is the same as phenotype for both homozygotes

Condition were fucosyl transferase is not working

Genes at one locus mask the expression of another locus

Noncomplementation

Complementation

Two things complementation tet determines

Traits expressed differently in males and females

Traits expressed only in one sex

A chemical, virus or some other substance or condition that mimics the phenotype of a genetic disorder

Genetic disorder with multiple phenotypes

Positive or negative for blood type is determined by the presence or absence of this protein

Mitochondrial DNA codes for

Distinct phenotypes

Continuous ditribution of phenotypes

Characteristics encoded at many loci

Recombination requires this enzyme

Death of cells in the optic nerve (cytoplasmic inheritance)

Coupling mutations are on the same chromosome

Repulsing mutations are on different chromosomes

Inversion not including the centromore

Inversion including the centromere

Duplication right next to

Duplication a distance away

Duplication in opposite order

Exact multiples of original chromosome set number

Inhibits spindle formation and holds cel in metaphase

Chromosome sets from the same species

Chromosome sets from different species

Addition/subtraction affecing only part of a set, not a whole set

One additional chromosome

ONe less chromosome (2n-1)

Two less chromosomes (2n-2)

two extra chromosomes (2n+2)

Trisomy 21

Trisomy 18

Trisomy 13

XXY

X

Responsible for Dark banding pattern

Responsible for Light banding pattern

Short arm

Long arm

Genes from one chromosome to another nonhomologous chromosome