Exam 1

A  sexual selection

B  hardy effect

C  reproductive variance

D  genetic bottleneck

A  only specific genes for specific proteins are activated in specific cell types.

B  they are mentally manipulated by an organism to achieve specific characteristics.

C  each cell type has its own unique DNA that is different from all other cells.

A  heritable chart

B  punnett square

C  pedigree chart

D  none of the above

A  physics, biological, cultural, and linguistic.

B  archaeological, geological, geographical, and biological.

C  biological, archaeological, cultural, and linguistic.

D  cultural, linguistic, geological, and physical.

A  mutation.

B  the founder effect.

C  stabilizing selection.

D  gene flow.

A  genotype

B  phenotype

C  allele frequency

D  recessive allele

A  natrual selection

B  recombination

C  gene flow

D  genetic drift

A  gene flow.

B  founder effect.

C  genetic drift.

D  a population bottleneck.

A  Genetic drift

B  Sexual selection

C  Natural selection

D  Gene flow

A  cell replication

B  energy production

C  protein synthesis

D  cytoplasmic

A  macroevolution

B  species split

C  microevolution

D  speciation

A  FALSE

B  TRUE

A  extinction

B  a population bottleneck

C  natural selection

D  a spontaneous population shift

A  species

B  evolved organisms

C  mutants

D  adapted organisms

A  a full complement of chromosomes

B  extra chromosomes

A  They Don’t effect variation

B  they increase variation

C  They both increases and decreases variation

D  they decrease variation

A  a process that occurs only over extremely long periods of time.

B  changes in the DNA of an individual over his or her lifetime.

C  the appearance of a new species.

D  a change in allele frequencies in a breeding population over time.

A  Deoxyribose, phosphate and nitrogenous bases

B  Chromosome s and nuclein

C  Amino acids, and hydrogen bonds

A  humans from a biological perspective

B  dinosaurs

C  pyrimids

D  humans from a cultural perspective only.

A  gene migration.

B  genetic drift.

C  admixture.

D  gene flow.

A  Replication and DNA construction

B  Replication and protein synthesis

C  Replication and polymerase immersion

D  Translation and transcription

A  TRUE

B  FALSE

A  The recessive allele is more likely to be passed down.

B  Both alleles have an equal probability of being passed down to the offspring.

C  The dominant allele is more likely to be passed down.

D  When both alleles are present none of them will be passed down to the next generation

A  None of the other responses are satisfactory answers.

B  Yes since all genes having to do with a trait always have the exact same influence on a trait.

C  No since different genes will exert varying degrees of influence on the trait

D  No since all traits are only controlled by one gene with two alleles.

A  organisms transform and pass these transformations on to their offspring

B  none of the answers are satisfactory

C  within a population, some variations are favored by environmental conditions and others are not

D  all species are fixed

A  TRUE

B  FALSE

A  determined by one gene

B  determined by one gene with multiple alleles

C  determined by more than one gene

A  would inherit characteristics that were acquired during their parents’ lifetimes.

B  changed genetically from their parents through the accumulation of random genetic mutations.

C  did not inherit characteristics from their parents but acquired them through interaction with their environment.

D  would be composed of an even blend of their parents’ characteristics.

A  nucleotide sequences

B  diploid and haploid numbers

C  chromosome number

D  epigenes

A  dominant

B  recessive

C  structural

D  phenotypic

A  control which amino acids get plugged into polypeptide chains.

B  function only in fruit flies.

C  appear to function in similar ways across diverse groups of organisms.

D  control the development of language in humans.

A  FALSE

B  TRUE

A  controlled by a single gene

B  greatly manipulated by social factors

C  mentally manipulated

D  controlled by multiple genes

A  A theory is an explanation that has been carefully examined and tested.

B  A hypothesis explains observations and cannot be refuted by new evidence.

C  A theory has been less thoroughly tested than a hypothesis.

D  A theory is an explanation based upon controversial facts.

A  have their own unique phenotypes and are geographically isolated from one another, but if they do happen to encounter one another, they are still capable of interbreeding although their offspring are infertile.

B  may share the same geographic area but are so phenotypically different that they never attempt to reproduce.

C  have their own unique phenotypes and are geographically isolated from one another, but are capable of successful interbreeding.

D  are geographically isolated from one another, look alike, but are not capable of successful interbreeding.

A  TRUE

B  FALSE

A  merely increased variation within populations.

B  resulted in new phenotype characteristics.

C  created new species.

D  were rare and unlikely to occur.

A  is expressed in the phenotype alongside a dominant allele.

B  can be masked in the phenotype.

C  can never be expressed in the phenotype.

D  can always be determined from the phenotype.

A  DNA was the molecule carrying the genetic code.

B  traits inherited from each parent blended together in the offspring.

C  traits are passed on from parent to offspring as discrete units.

D  peas were a poor choice for understanding basic hereditary principles.

A  Natural selection does not deal with diseases and as a result this scenario is not possible.

B  Being the same makes everybody stronger since they are pure blooded and as a result are more likely to survive.

C  A disease that kills one individual is likely to kill everybody else.

D  Diseases typically attack individuals and not populations.

A  gene flow, mutations, chromosomes, and genes.

B  natural selection, gene flow, genetic drift, and mutations.

C  mutations, genes, and genetic drift.

D  natural selection, genes, alleles, and chromosomes.

A  chains of amino acids.

B  your mind

C  ribosomes

D  genes.

A  gene variants

B  heterozygous genes

C  homozygous genes

D  locus

A  21,000 genes

B  30,000 genes

C  3 billion genes

D  100,000 genes

A  FALSE

B  TRUE

A  sperm are more powerful than eggs.

B  the X chromosome determines sex.

C  the X chromosome originates only from females.

D  the Y chromosome is present in males only.

A  the observable traits that are produced by a genotype

B  the entire collection of genetic material in a breeding community that can be passed on from one generation to the next

C  the entirety of an individual organism’s genome

D  pools of water that attract organisms and encourage mating

A  mitochondria

B  DNA

C  sodium

D  tRNA

A  polygenic inheritance

B  Mendelian inheritance

C  recessive traits

D  codominance