Bio Final Exam
Blood type O
A man with blood type AB could NOT be the father of a child with?
a sugar, phosphate and a nitrogenous base
A nucleotide contains
Gene Mutation
A permanent change in the structure of a chromosome that can be detected microscopically is termed a
Turner syndrome
A person with an XO genotype is classified as having
Alleles
Alternative forms of a gene that influence the same trait and are found at the same location in homologous chromosomes are called
can occur if the sperm has an extra number 21 chromosome
Down syndrome
duplication
If a chromosomal segment appears more than once in the same chromosome, it is termed
inversion
If a chromosome segment is turned around 180 degrees, the chromosomal mutation is termed
female
If a person inherits two X chromosomes, this individual will be
50%, since the mother is only a carrier
If a woman is a carrier for the color-blind recessive allele and her husband is normal, what are their chances that a son will be color-blind?
Law of independent assortment
If pairs of factors separate independently of other pairs of factors, you are dealing with the
1/2
If your mother is normal but your father is heterozygous for Huntington's disease(dominant), what are your chances of escaping the disease entirely?
25%
In humans, assume red hair is recessive to dark hair. What are the chances of a dark-haired couple having a red-haired child if each had a red-haired parent?
Bb
In humans, presume brown eyes (B) are a simple dominant over blue eyes (b). A brown-eyed woman who has a blue-eyed child would have the genotype
green-seed plant
In peas, yellow is dominant over green in seeds. With which of these is it best to cross a yellow-seeded pea plant to determine whether it is pure or hybrid.
a purine and a pyrimidine
In the Watson-Crick model of DNA, the "steps" of the later are composed of
Monohybrid cross
In which kind of cross would you expect to find a ratio of 3:1 among the F2 offspring?
Pea plants
Mendel carried out most of his research with
are distributed into sepratae fametes
Mendel's law of segregation implies that two members of an allelic pair
A+G=T+C
One of the base conservation rules states that
thymine
The amount of adenine is always equal to the amount of ____ in DNA
DNA polymerase
The enzyme that is used to join DNA complementary nucleotides together is
DNA
The heredity material found in eukaryptic cells is
Watson and Crick
The individual(s) credited witht the discovery of the structure of DNA is
Multiple alleles
The inheritance of blood typed in humans can be explained by
extra chromosome 21
The most common autosomal abnormality is seen in a person with
Dominant X-linked trait
The trait diagrammed in Figure 24.1 is a(n)
True
Traits associaeted with X-linked genes are generally transmitted from a grandfather via a normal mother to her son.
25%
What are the chances that two individuals with wavy hair will have curly-haired child? Curly-hair and straighr hair exhibit incomplete dominance
nondisjunction
When homologous chromosomes fail to separate during meiosis, this is termed
Karyotype
When human body cells(except for red blood cells cells) are treated to start cell division, and are then photographed to allow examination of the details of the chromosome set, you are
Polygenic inheritance
When two or more sets of alleles affect the same trait in an additive fashion, it is termed
Catalyze chemical reactions
Which is NOT a major function of the genetic material?
RrYy x RrYy
Which of the following crosses will yield four phenotypes in a ration of 9:3:3:1
adenine-thymine; guanine-cytosine
Which of the following have nitrogenous bases correctly paired in DNA?
Phenotype
Which of the following is represented by word description, such as black and tall?
WwSs
Which of the following would be considered a dihybrid cross?
