Test 2 Mastering Bio

Cystic fibrosis is an inherited disorder that affects which of the following? lungs liver heart

All of the above.

Which of the following is true? Only men can be carriers for genetic disorders. Only women can be carriers for genetic disorders Neither women nor men can be carriers for genetic disorders. Both women and men can be carriers for genetic disorders.

Both women and men can be carriers for genetic disorders.

The second-leading cause of death in most developed countries (following heart disease) is __________. food- and water-borne diseases automobile accidents cancer AIDS

cancer

An important technique that helps provide insight into interesting genetic questions at the molecular level, such as reasons for hairless dogs, is called _____. a testcross inbreeding DNA sequencing genetic testing

DNA sequencing

Which of the following is a leading cause of sudden death among young athletes? cystic fibrosis Fragile X syndrome HCM NF1

HCM

Which of the following is not a requirement of natural selection? genetic variation differential reproductive success catastrophic events overproduction of offspring

catastrophic events

What is recombinant DNA technology? isolating genes from homologous pairs of chromosomes combining genes from different species combining alternate alleles on the same chromosome using DNA databases to identify criminal suspects

combining genes from different species

Restriction enzymes __________________________. restrict access to the DNA of a cell bind DNA together at specific nucleotide sequences cut DNA at specific nucleotide sequences copy DNA

cut DNA at specific nucleotide sequences

Part A According to Mendel's law of segregation, ______. gametes are diploid two alleles segregate into each gamete gametes have one copy of each allele more gametes carrying the dominant allele are produced than gametes carrying the recessive allele

gametes have one copy of each allele

Sexual reproduction requires the cellular process of _____ followed by _____. meiosis ... fertilization mitosis ... meiosis mitosis ... fertilization mitosis ... gamete formation

meiosis ... fertilization

This type of RNA, unknown until about 20 years ago, may regulate the expression of an estimated one-third of all human genes. ribosomal RNA double-stranded RNA tRNA microRNAs

microRNA's

The DNA sequence that acts as a switch for turning the lac operon off or on is the __________. regulatory gene operator promoter repressor

operator

A component of tobacco smoke called BPDE leads to the formation of human lung tumors by causing mutations in _________. human lung cells lungs of males only tobacco leaves the p53 gene

the p53 gene

The process of accurately amplifying a sample of DNA is called __________________________. gel electrophoresis the polymerase chain reaction recombinant DNA short tandem repeats

the polymerase chain reaction

Which of the following is an example of a transgenic organism? Dolly, the cloned sheep a bacterium with human gene for producing insulin a "test-tube" baby produced via in vitro fertilization a bacterium found with a plasmid that provides protection against an antibiotic

a bacterium with human gene for producing insulin

The backbone of DNA consists of ______. nitrogenous bases a repeating sugar-nucleotide-sugar-nucleotide pattern paired nucleotides a repeating sugar-phosphate-sugar-phosphate pattern

a repeating sugar-phosphate-sugar-phosphate pattern

Which of the following would be most likely to lead to cancer? mutations in proto-oncogenes and activation of a tumor-suppressor gene failure of a proto-oncogene to produce a protein and overexpression of a tumor-suppressor gene mutations in proto-oncogenes and inactivation of a tumor-suppressor gene overexpression of both a proto-oncogene and a tumor-suppressor gene

mutations in proto-oncogenes and inactivation of a tumor-suppressor gene

Incomplete dominance is a condition in plants and people where __________. most heritable diseases arise a single gene impacts more than one characteristic offspring have an appearance in between the phenotypes of the two parents multiple alleles are responsible for an inheritance pattern

offspring have an appearance in between the phenotypes of the two parents

Which of the following cells is least differentiated? embryonic stem cells pancreatic cells homeoboxes adult stem cells

pancreatic cells

A supplemental appendix is to a book as a ____________ is to a bacterial chromosome. genetically modified organism plasmid bacterium restriction enzyme

plasmid

The systematic study of the full protein sets that genomes encode is called _____. DNA profiling STR analysis RFLP analysis proteomics

proteomics

Human insulin is produced in large quantities by __________. expression of the human insulin gene in pigs a variety of techniques developed immediately following the work of Watson and Crick recombinant E. coli bacteria grown in large fermentation vats cows and pigs

recombinant E. coli bacteria grown in large fermentation vats

Anaphase II is essentially the same as mitotic anaphase except that in anaphase II ______ and in mitotic anaphase ______. chromosomes line up double file in the middle of the cell... chromosomes line up single file in the middle of the cell crossing over occurs... crossing over does not occur the cells are haploid and sister chromatids separate... the cells are diploid and sister chromatids separate the cells are diploid... the cells are haploid

the cells are haploid and sister chromatids separate... the cells are diploid and sister chromatids separate

Upon completion of telophase I and cytokinesis, there is(are) ______ cell(s). four haploid two haploid one diploid two diploid

two haploid

All of life is related through common ancestry accounting for the BLANK of life

unity