Bio Final Exam

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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?


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