Final Exam Flashcards
questions from exams 1, 2 & 3
Nondisjunction of the chromosomes
‘all of the above’
- abnormal chromosome number
- turner’s syndrome (XO female)
- XYY males
ribosome
assemble proteins
the sperm
the sex of the child is dependent upon the chromosome information
if a parental cell has 28 chromosomes prior to meiosis, how many chromosomes will each daughter cell have?
only 14 after meiosis is finished
how many autosomes do humans have?
22 autosomes
the haploid number of chromosomes
‘none of the above…’
the organelle responsible for cellular respiration is the what?
mitochondria
If there is a substitution mutation in your DNA that results in no change to the amino acid sequence in your DNA, then it is —- mutation
silent
The process of converting the information contained in mRNA into a protein is called
translation
if a couple had two children, what are the chances that both would be females?
25%
The phase of the cell cycle where the cell divides into two is called the …
the mitotic phase
one parent has wavy hair (incompletely dominant trait) and the other straight hair. What are the chances their child will have wavy hair?
75%
The purpose of meiosis is to produce …
‘all of the above’
- haploid cells
- sex cells
- gametes
The correct order of cell division
IPMAT
interphase
prophase
metaphase
anaphase
telophase
One difference between spermatogenesis and oogenesis is …
the number of cells produced
The process of converting the information contained in the DNA (a gene) into an RNA (mRNA) sequence is called…
transcription
If an individual is born with a 2n+1 condition, then whose fault is it?
could be either parent
The physical traits in an organism are called the …
phenotypes
during the first round of meiosis the … separate
homologous chromosomes
crossing over occurs between
non-sister chromatids of a homologous pair
whiteboard practice
distinguish between mitosis, meiosis or interphase (haploid or diploid)
Seven attributes of life
cell
encode for attributes-DNA
adapt overtime
respond to environment
regulate internally
process energy
reproduce
grow /develop
the controlling factor that governs the 7 attributes of life
DNA
The smallest unit of life that has all these attributes
cell
5 kingdoms
protists, plants, monera, fungi, animals
whiteboard practice
cellular names
transcription happens inside…
the nucleus
if your parents or the p generation, then your children will be the…
F2 generation
in humans, a haploid cell that is n+1 chromosomes has a total of
24 chromosomes
which phase of mitosis is the opposite of telophase?
prophase
an XXY male is said to have
Klinfelter’s syndrome
during oogenesis, the extra chromosomes leave the egg as a
polar body
the three-letter code of RNA nucleotides that determine the amino acid sequence is called a
codon
color-blind is an example of
sex-linked trait
the job of this organelle is to assemble the amino acids into proteins
ribosomes
The mother had blond hair and her child has brown hair. Assuming that brown hair is dominant over the blond and the suspected father has blond hair. Can he be eliminated as the possible father?
yes
if a gene of DNA is a ATTCGGAGCT, the RNA strand is…
UAAGCCUCGA
after ovulation, the remaining cells in the follicle will become the…
corpus luteum