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Bio Mitosis, Bio Meiosis, Bio Introduction to Genetics, Bio Human Genetics

Terms in this set (34)

The process of mitosis functions to:
maintain chromosome number
In Mendel's time, most people believed that
the characteristics of parents were blended in the offspring.
Phenylketonuria
autosomal recessive
Meiosis is a division mechanism the produces _________.
four nuclei
A typical somatic cell in humans contains _____ total chromosomes.
46
Crossing over occurs during
Prophase I
Which organism did Mendel utilize to work out the laws of segregation and independent assortment?
pea plant
Sickle cell anemia
autosomal recessive
Cystic fibrosis
autosomal recessive
Humans are _______ as it refers to total chromosome number
diploid (2n)
Mendel demonstrated the theory of segregation of alleles and particulate inheritance via
monohybrid cross
Independent assortment occurs during:
Metaphase I
Most of the cell cycle is:
interphase
Each unique molecular form of the same gene is called:
allele
Mendel demonstrated the theory of independent assortment via:
dihybrid cross
Huntington disorder
autosomal dominant
Hypercholesterolemia
autosomal dominant
A locus is defined as a(n):
location of an allele on a chromosome
Gregor Mendel was the first to describe:
particulate inheritance
When is DNA replicated (i.e., chromosomes are duplicated) during interphase?
S
What structure functions to separate sister chromatids during division?
spindle apparatus
Meiosis ________ the original chromosome number.
reduces
________ is the interaction among the products of two or more gene pairs.
epistasis
Red-green color blindness
X-linked recessive
What is the correct sequence of steps of mitosis?
Prophase, Metaphase, Anaphase, Telophase
Homologous chromosomes pair up during which stage of meiosis?
Prophase I
In ________, both alleles for a particular trait specify two phenotypes in a heterozygous individual.
codominance
Achondroplasia
autosomal dominant
What stage of mitosis includes the breakdown of the nuclear membrane?
Prophase
Independent assortment of the homologous chromosomes occurs during which stage of meiosis?
Metaphase I
Which of the following is an example of a multiple allele system?
ABO blood groups
Down syndrome
Trisomy 21
What stage of mitosis includes the reformation of the nuclear membrane?
Telophase
When does crossing over (synapsis) occur during mitosis?
Crossing over does NOT occur during mitosis
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