Exam 1

A  reproductive variance

B  genetic bottleneck

C  hardy effect

D  sexual selection

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

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

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

A  heritable chart

B  punnett square

C  pedigree chart

D  none of the above

A  archaeological, geological, geographical, and biological.

B  cultural, linguistic, geological, and physical.

C  biological, archaeological, cultural, and linguistic.

D  physics, biological, cultural, and linguistic.

A  stabilizing selection.

B  gene flow.

C  mutation.

D  the founder effect.

A  allele frequency

B  phenotype

C  recessive allele

D  genotype

A  natrual selection

B  genetic drift

C  recombination

D  gene flow

A  a population bottleneck.

B  founder effect.

C  gene flow.

D  genetic drift.

A  Natural selection

B  Gene flow

C  Sexual selection

D  Genetic drift

A  protein synthesis

B  energy production

C  cytoplasmic

D  cell replication

A  species split

B  macroevolution

C  microevolution

D  speciation

A  TRUE

B  FALSE

A  a population bottleneck

B  extinction

C  natural selection

D  a spontaneous population shift

A  evolved organisms

B  adapted organisms

C  mutants

D  species

A  extra chromosomes

B  a full complement of chromosomes

A  they increase variation

B  They Don’t effect 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  dinosaurs

B  humans from a biological perspective

C  humans from a cultural perspective only.

D  pyrimids

A  gene migration.

B  admixture.

C  genetic drift.

D  gene flow.

A  Translation and transcription

B  Replication and polymerase immersion

C  Replication and DNA construction

D  Replication and protein synthesis

A  FALSE

B  TRUE

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

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

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

B  all species are fixed

C  none of the answers are satisfactory

D  organisms transform and pass these transformations on to their offspring

A  TRUE

B  FALSE

A  determined by one gene

B  determined by more than one gene

C  determined by one gene with multiple alleles

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

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

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

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

A  diploid and haploid numbers

B  epigenes

C  chromosome number

D  nucleotide sequences

A  dominant

B  phenotypic

C  recessive

D  structural

A  control which amino acids get plugged into polypeptide chains.

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

C  function only in fruit flies.

D  control the development of language in humans.

A  FALSE

B  TRUE

A  controlled by multiple genes

B  greatly manipulated by social factors

C  mentally manipulated

D  controlled by a single gene

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

B  A theory is an explanation based upon controversial facts.

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

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

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

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

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

D  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.

A  FALSE

B  TRUE

A  merely increased variation within populations.

B  created new species.

C  were rare and unlikely to occur.

D  resulted in new phenotype characteristics.

A  can always be determined from the phenotype.

B  can be masked in the phenotype.

C  can never be expressed in the phenotype.

D  is expressed in the phenotype alongside a dominant allele.

A  DNA was the molecule carrying the genetic code.

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

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

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

A  Diseases typically attack individuals and not populations.

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

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

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

A  mutations, genes, and genetic drift.

B  gene flow, mutations, chromosomes, and genes.

C  natural selection, genes, alleles, and chromosomes.

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

A  ribosomes

B  your mind

C  genes.

D  chains of amino acids.

A  locus

B  gene variants

C  homozygous genes

D  heterozygous genes

A  100,000 genes

B  21,000 genes

C  3 billion genes

D  30,000 genes

A  FALSE

B  TRUE

A  the X chromosome originates only from females.

B  the Y chromosome is present in males only.

C  sperm are more powerful than eggs.

D  the X chromosome determines sex.

A  the entirety of an individual organism’s genome

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

C  the observable traits that are produced by a genotype

D  pools of water that attract organisms and encourage mating

A  tRNA

B  mitochondria

C  sodium

D  DNA

A  codominance

B  recessive traits

C  polygenic inheritance

D  Mendelian inheritance