What is all of the above: homologous chromosomes,
sex chromosomes, autosomes
Pg-341
100
The sequencing of human chromosomes 21 and 22 showed that:
What are some regions of chromosomes that don't code for proteins.
Pg. 349
100
Process of DNA fingerprinting is based on the fact that:
What is no two people, except identical twins, have exactly the same DNA.
Pg. 357
100
In a pedigree, if a mother is represented by a shaded circle and a father is represented by a shaded square, their children can be represented by either shaded or unshaded circles or squares.
True
False ___________
What is True.
Pg. 342
100
If a couple has five boys, the probability that the next child will be a boy is ____________________.
What is 50%.
Pg. 342
200
In humans, a male has
What is one X chromosome and one Y chromosome.
Pg.341
200
The formation of a Barr body:
What causes the genes on one of the X chromosomes in a female cell to be switched off.
Pg. 352
200
Which of the following information CANNOT be obtained from the Human Genome Project?
What is whether an allele is dominant or recessive
Pg. 358
200
If a cat has both orange and black spots, it is homozygous for the alleles on the X chromosome that code for spot color.
True
False ________________
What is false. Heterozygous
Pg. 352
200
A boy who has hemophilia inherited the disorder from his ____________________.
What is Mother.
Pg. 351
300
What percentage of human sperm cells carry an X chromosome?
What is 50%.
Pg. 342
300
Because the X chromosome contains genes that are vital for normal development, no baby has been born
What is without an X chromosome.
Pg. 353
300
The purpose of gene therapy is to
What is cure genetic disorders.
Pg. 359
300
Males generally do not have Barr bodies.
True
False _________________
What is true.
Pg. 352
300
The process of _________________________ replaces a faulty gene with a normal working gene.
What is gene therapy.
Pg. 359
400
A pedigree can be used to:
What is determine whether an allele is dominant or recessive.
Pg. 342
400
Nondisjunction can involve
a. autosomes. c. homologous chromosomes.
b. sex chromosomes. d. all of the above
What is D. (all of the above): autosomes,
homologous chromosomes, sex chromosomes.
Pg. 352
400
Which of the following is the first step in gene therapy?
What is identifying the faulty gene that causes the disease.
Pg. 359
400
DNA fingerprinting analyzes sections of DNA that have little or no known function but are similar from person to person.
True
False ________________
What is false. vary widely
Pgs. 356 & 7
400
A man who does not have hemophilia and a woman who is a carrier of the disorder have a son. What is the probability that their son has hemophilia?
What is the probability that their son has hemophilia is 50%.
Pg. 351
500
Which of the following does NOT lead to cystic fibrosis?
a. missing codon in mRNA
b. shorter CFTR polypeptide chain
c. point mutation
d. absence of CFTR in cell membrane
What is C a point mutation.
Pg. 346
500
If nondisjunction occurs during meiosis,
What is some gametes may have an extra copy of some genes.
Pg. 352
500
Gene therapy is successful if the
What is replacement gene is transcribed in the person’s cells.
Pg. 359
500
Information from the Human Genome Project can be used to learn more about human diseases.
True
False ______________________
What is true.
Pg. 358
500
Why might different alleles of the same gene produce different fragments when treated with the same restriction enzyme?
What is Different alleles may have different DNA sequences that include different numbers of copies of the enzyme’s recognition site as well as different locations of the recognition site within the allele.