Biology Questions
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according to Motoo Kimura's Neutral theory of molecular evolution, most DNA substitutions are fixed by
when gene flow is happening between two different populations with very different allele frequencies, what is likely results?
populations of mud snails were started in replicate aquaria .Each started with 35% asexual females. Two years later the % asexual were monitored. what happened?
A trait that confers a greater level of fitness, relative to those who lack it, is called an
In a species of Jewel Beetle, you find that individuals with the AA genotype produce 100 offspring on-average, individuals with AB produce 75, and individuals with BB produce 50. what is the relative fitness for each genotype (AA:AB:BB)?
Compare populations where genetic drift is the only evolutionary force. Which population is expected to lose alleles fastest? A) a population with 50 individuals B) a population with 5000 individuals
in general, when variance in mating succes is greater for one sex than for the other, we can predict that members of the sex with less variance will be_________, and members of the sex subject with greater variance will be ____.
In sexually monomorphic species the sexes look alike. In these species reproductive success tends to be ____ in males than in females
Jones et al, 2022 studied lekking newts, reseachers compared the reproductive success of males and females: they found?
As an exception to Bateman's predictions about differential reproductive success in males and females- date on gunnison's prairie dogs and observed that an increase in litter size was observed when females
The good genes mechanism for evolution of female mate choice involves which of the following preference? A)colors she can more easily perceiveB) males providing more parental care C) males providing larger prey items D) Male traits positively related to fitness
which of the following would be considered an adaptation? A) cryptic coloration ( mice that match the environment around them)B) cockroaches have adverse response to glucose after the population had been baited with poison laced. glucoseC)copper tolerance in Bentgrass that live in a copper mine D) all of these
IN vertebrate animals, asexual reproduction is
What type of reproduction is more likely in a changing environment? asexual, clonal, parthenogenetic, sexual
Evidence we looked at in class support that the amplifying host of HIV 1 is
He developed an early theory of evolution, and thought organisms passed on characteristics that they acquired during this lifetime
Sexual size dimorphism resulting in males being much larger than females is most often a consequence of which of the following?
in Midshipman fish, males can either be large territorial indiciduals or small and "sneeky". This is an example of what?
which is true about different strains of HIV?A) HIV is an infection that is in higher frequency in gay men than any other subset of humans throughout the worldB) HIV-1 is more efficient at transmitting between cells and are more lethal than HIV-2 meaning there is a positive correlation between transmission and lethalityC) strains of HIV-1 efficiently transmit from host to host but are not as lethal as ones stains of HIV-2.
If a gene effects more than one trait- in particular time of first reproduction and senescence. this is