A trisomy means that a cell has ____ copies of a chromosome
What is 3
100
The daughter cells produced by meiosis are this
What is haploid
100
The father of genetics
What is Mendel
100
What inheritance pattern shows intermediate phenotypes
What is incomplete dominance
100
What is a pedigree?
What is a tool for visualizing inheritance patterns
200
The name of the event that results in anextra or missing chromosomes after meiosis is called...
What is non-disjunction
200
The number of ova produced by oogenesis
double-double: what else is produced?
What is 1
200
List three traits Mendel studied
What is pod colour and shape, seed colour and shape, flower colour and position, height.
200
this inheritance pattern results in "patches" of allele expression
What is co-dominance
200
T of F: In a karyotype, the X chromosome is larger than the Y
What is T
300
A trisomy or monosomy are examples of ______
What are non-disjunctions
300
Name the types of cells that undergo meiosis
What is sex-cells
300
List all the possible crosses which could result in at least one Bb human being formed.
What is (mon x dad): BB x Bb; BB x bb; Bb x Bb; bb x BB; bb x Bb
300
This type of inheritance controls continuous traits
What is multiple genes
300
What is the purpose of prenatal screening and list one way it is done.
What is check the health of the developing embryo. IPS or amniocentesis.
400
Name 4 survivable non-disjunction disorders in humans
What is downs (21), turners (XO), klienfelters (XXY), XXX, XYY, OK edwards and pataus
400
In which stage does crossing-over occur
What is prophase I
400
A double heterozygote is self-fertilized. What is the phenotypic ratio of the offspring.
What is 9:3:3:1
400
A child with type O blood is born to a mother with type A blood. List the possible maternal and paternal genotypes.
What is Ia i x Ia i or Ib i or ii
400
N/A
N/A
500
Draw a n=4 cell undergoing a non-disjunction in anaphase I.
Double-double: how many chromosomes would an individual have if they were born from one of the gametes and had a trisomy.
What is
n=4 therefore 2n=8, but 1 extra, so 9 chromosomes.
500
List two sources of genetic variation in meiosis and where they occur.
What are crossing over in prophase I and independent assortment in metaphase I
500
A male wolf has brown eyes and silver fur. His dam (mother) had blue eyes.
A female wolf has brown eyes and grey fur. Her dam had silver fur. She produced a blue-eyed pup in a mating with a different male.
Silver and blue are recessive.
Determine if these wolves could produce pups with blue eyes and silver fur.
What is yes
male: Bb ss Female: Bb Ss
500
A bald blue-eyed male has children with a woman with brown eyes. Her mother had blue eyes and her father was bald. (Bald is sex-linked recessive).
Find the probability of them having a bald blue-eyed daughter.