Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
45 Cards in this Set
- Front
- Back
Which disease is most likely non-disjuntive during meiosis?
|
down syndrome
|
|
which genetic defect is correlated with the age of the mother?
|
down syndrome
|
|
if a woman has blood type AB and a man has blood type O, what possible combinations could their children be?
|
A or B
|
|
what pattern of sex chromosome do people with Klinefelter syndrome have?
|
XXY
|
|
what pattern of sex chromosome do people with Turner Syndrome have?
|
XO
|
|
eye color and height are traits that demonstrate...
|
polygenic inheritance
|
|
which of the following is true of mitosis:
a.Mitosis leads to the formation of four haploid cells b.Mitosis occurs during the S phase of the cell cycle c.Mitosis starts with tetrad formation d.Mitosis occurs in germ cells but not somatic cells e. mitosis leads to the formation of 2 identical daughter cells. |
e. mitosis leads to the formation of 2 identical daughter cells.
|
|
what cellular machinery is responsiible for the seperation of the chromosomes?
|
spindle fiber
|
|
what cellular machinery is responsible for protein synthesis?
|
ribosomes
|
|
what is found in DNA but not RNA?
|
thymine
|
|
inheritance of ABO blood types in humans demonstrates
|
-multiple allelism
-codominance -complete dominance |
|
what are examples of CODOMINANCE
|
-MN blood groups
-sickle cell anemia |
|
what are examples of MULTIPLE ALLELES
|
-ABO blood groups
|
|
which pedigree analysis is inherited in every generation?
|
autosomal dominant
|
|
which pedigree analysis skips a generation?
|
autosomal recessive
|
|
which pedigree analysis goes from father to daughter to grandson?
|
x-linked recessive
|
|
protein ---> RNA
|
translation
|
|
DNA ---> DNA
|
replication
|
|
RNA ----> DNA
|
transcription
|
|
adenine =
|
thymine
|
|
guanine =
|
cytosine
|
|
how many phenotypes does the F1 generation demonstrate?
|
1
|
|
what happens to the masked phenotype
|
it appeare unaltered in the F2 generation
|
|
how many genetically distinct gametes does each parent form in a dihybrid cross?
|
4
|
|
ratio 1 red: 2 pink: 1 white
|
incomplete dominance
|
|
what are sex linked traits
|
traits located on the same chromosome, majority are x-linked
|
|
what is an example of sex-influenced traits?
|
male patterned baldness
|
|
what is cytokinesis
|
the division of the cytoplasm into 2 daughter cells
|
|
t/f most of our cells are unreplicated
|
true
|
|
what inhibits cell division by ensuring the necessary cellular processes are completed before progression to the next stage of the cel cycle
|
tumor supressor genes
|
|
mutations in what kind of genes can lead to cancer?
|
tumor supressor genes
|
|
when mutates, what kind of genes produce uncontrolles proliferation of the cell
|
protogenes
|
|
t/f only one amino acid can be specified by a given triplet codon
|
true
|
|
DNA replicates during which phase?
|
S-phase
|
|
how many haploid cells does meiosis produce?
|
4
|
|
MITOSIS- chromosomes begin to condense to form the tightly coiled structures
|
prophase
|
|
MITOSIS- the microtubles penetrate the nuclear region and form a spindle apparatus. they attach to sister chromatids and they are lined up at the equator of the spindle
|
metaphase
|
|
MITOSIS- the attachments break and the chromosomes move to opposite poles of the cell
|
anaphase
|
|
MITOSIS- chromosomes decondense, 2 new daughter cells are formed with two of each type of chromosome
|
telophase
|
|
TAY SACHS
|
AUTOSOMAL RECESSIVE
|
|
SICKLE CELL ANEMIA
|
AUTOSOMAL RECESSIVE
|
|
RED-GREEN COLOR BLINDNESS
|
X-LINKED RECESSIVE
|
|
DOWN SYNDROME
|
TRISOMY 21
|
|
in meiosis ____ happens during anaphase 1 and ______ happens during anaphase 2
|
homologous chromosomes seperate during anaphase 1
sister chromatids seperate during anapahse 2 |
|
what pedigree analysis is rare and skips generations?
|
mendelian recessive
|