General Biology

. If this population of butterflies is in genetic equilibrium, the frequency of the homozygous ...

. If this population of butterflies is in genetic equilibrium, the frequency of the homozygous ...

. If this population of butterflies is in genetic
  equilibrium, the frequency of the homozygous
  dominant genotype in the new generation will be
  a. p2.
  b. 2pq.
  c. p2 + q2.
  d. 490 AA.
  e. p2 and 490 AA.[br

kkoonge   22   3 Replies

dymasraja

If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of ...

If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of ...

If the frequency of expression of a recessive trait in a
  population is 16 percent, the frequency of the
  recessive allele is what percent?
  a. 16
  b. 25
  c. 40
  d. 50
  e. 67

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qpitt19777   47   2 Replies

qpitt19777

If the frequency of the recessive allele is 30 percent, the frequency of the heterozygous carrier ...

If the frequency of the recessive allele is 30 percent, the frequency of the heterozygous carrier ...

If the frequency of the recessive allele is 30 percent,
  the frequency of the heterozygous carrier is what
  percent?
  a. 42
  b. 9
  c. 27
  d. 60
  e. 80

Question 2[/color

JNASTY123   56   2 Replies

JNASTY123

Suppose that you have a population of guinea pigs in which two-thirds of the alleles for coat color ...

Suppose that you have a population of guinea pigs in which two-thirds of the alleles for coat color ...

Suppose that you have a population of guinea pigs in
  which two-thirds of the alleles for coat color specify
  black, and one-third specify white. According to the
  Hardy-Weinberg rule, what will be the ratio of these
  alleles

memoloka   40   3 Replies

kzabec

Which of the following is NOT true about the Hardy- Weinberg formula?

Which of the following is NOT true about the Hardy- Weinberg formula?

Which of the following is NOT true about the Hardy-
  Weinberg formula?
  a. It is helpful to doctors and genetic counselors.
  b. It can predict the carrier frequency of alleles
  known to cause genetic disorders.
  c. It ca

vr   49   2 Replies

vr

Selection pressures acting on a population may favor

Selection pressures acting on a population may favor

Selection pressures acting on a population may favor
  a. individuals at the left end of the range of
  variation.
  b. individuals at the right end of the range.
  c. extreme individuals at both ends of the range.
  d. the i

roltschj   37   2 Replies

roltschj

In the text example, the change in moth populations from predominantly light- to dark-winged forms ...

In the text example, the change in moth populations from predominantly light- to dark-winged forms ...

In the text example, the change in moth populations
  from predominantly light- to dark-winged forms was
  the result of
  a. environmental changes.
  b. natural selection.
  c. food choices by predators.
  d. the abilit

jackiemartini09   23   2 Replies

jackiemartini09

As the trees in England become less sooty due to pollution controls on factories, which of the ...

As the trees in England become less sooty due to pollution controls on factories, which of the ...

As the trees in England become less sooty due to
  pollution controls on factories, which of the
  following should occur?
  a. Fewer dark moths should survive.
  b. Numbers of dark and light moths wont change
  due to stabil

Daddy667   50   3 Replies

bhinz

Rock pocket mice of the Sonoran desert

Rock pocket mice of the Sonoran desert

Rock pocket mice of the Sonoran desert
  a. are nocturnal feeders.
  b. live in both tawny-colored granite outcroppings
  and dark basalt from old lava flows.
  c. are camouflaged from predators by their fur
  color.
  d

Nudee88   34   1 Reply

vivian970811

When DDT was first introduced, insects were very susceptible to it. The development of resistance ...

When DDT was first introduced, insects were very susceptible to it. The development of resistance ...

When DDT was first introduced, insects were very
  susceptible to it. The development of resistance to
  DDT by insects was the result of
  a. special creation.
  b. natural selection of forms that expressed genes
  for resis

YAZID   30   1 Reply

beunique90

Stabilizing selection occurs when (Multiple Choice)

Stabilizing selection occurs when (Multiple Choice)

Stabilizing selection occurs when
  a. the environment controls which organisms will
  survive.
  b. humans determine which organisms will survive.
  c. the extremes of the population have a lesser
  chance to survive.
 

nmar   57   2 Replies

nmar

In a certain bird species, clutch size (the number of eggs laid by a female at one time) ranges ...

In a certain bird species, clutch size (the number of eggs laid by a female at one time) ranges ...

In a certain bird species, clutch size (the number of
  eggs laid by a female at one time) ranges from four
  to eight, and the most frequent clutch size is six. This
  phenomenon is an example of
  a. sexual selection.
  b.

tere   60   2 Replies

tere

The famous bell-shaped curve that usually results when test scores are plotted against number of ...

The famous bell-shaped curve that usually results when test scores are plotted against number of ...

The famous bell-shaped curve that usually results
  when test scores are plotted against number of
  students is an example of what type of selection?
  a. disruptive
  b. stabilizing
  c. divergent
  d. variable
 

loryatchy   34   1 Reply

Mtnimp

The black-bellied seedcrackers of Cameroon

The black-bellied seedcrackers of Cameroon

The black-bellied seedcrackers of Cameroon
  a. have bills either 12 or 15 mm wide.
  b. use both hard and soft seeds during the wet
  season
  c. sustain intense competition for scarce seeds
  during times of drought.
 

teysha   30   1 Reply

hk7

Male mallards have had emerald green head feathers and wings with metallic blue patches for ...

Male mallards have had emerald green head feathers and wings with metallic blue patches for ...

Male mallards have had emerald green head feathers
  and wings with metallic blue patches for hundreds of
  years, whereas female mallards have been drab,
  brown-feathered ducks. This phenotypic situation
  suggests that mallards

Thisisdumb   54   3 Replies

DunkinJr

Sexual dimorphism has arisen as a result of

Sexual dimorphism has arisen as a result of

Sexual dimorphism has arisen as a result of
  a. stabilizing selection.
  b. heterozygote superiority.
  c. kin selection.
  d. sexual selection.
  e. directional selection.

Question 2[

Tatu   38   3 Replies

mmr53

The influence of genetic drift on allele frequencies increases as

The influence of genetic drift on allele frequencies increases as

The influence of genetic drift on allele frequencies
  increases as
  a. gene flow increases.
  b. population size decreases.
  c. mutation rate decreases.
  d. the number of heterozygous loci increases.
  e. random mati

hannah415   38   2 Replies

hannah415

The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is ...

The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is ...

The sharp reduction of the gene pool and the
  numbers of a population through a severe epidemic is
  an example of
  a. natural selection.
  b. genetic isolation.
  c. the bottleneck effect.
  d. the founder effect..

Bishopoutlaw   24   2 Replies

Bishopoutlaw

Evidence from the flour beetle experiments discussed in the text provides support for genetic drift ...

Evidence from the flour beetle experiments discussed in the text provides support for genetic drift ...

Evidence from the flour beetle experiments discussed
  in the text provides support for genetic drift resulting
  in
  a. random change in allele frequencies.
  b. fixation of one or more alleles.
  c. loss of genetic diversi

tcromwell   37   2 Replies

tcromwell

Island populations do NOT exhibit which of the following when compared to the mainland populations ...

Island populations do NOT exhibit which of the following when compared to the mainland populations ...

Island populations do NOT exhibit which of the
  following when compared to the mainland
  populations from which they are derived?
  a. greater variability
  b. greater extinction rates
  c. fewer heterozygous loci
  d.

lalalala1   50   2 Replies

lalalala1

Which of the following is a type of reproductive isolating mechanism?

Which of the following is a type of reproductive isolating mechanism?

Which of the following is a type of reproductive
  isolating mechanism?
  a. temporal isolation
  b. mechanical isolation
  c. behavioral isolation
  d. ecological isolation
  e. all of these

[fa

JohanaT16   82   2 Replies

JohanaT16

According to Ernst Mayr, a species consists of individuals that are characterized by all of the ...

According to Ernst Mayr, a species consists of individuals that are characterized by all of the ...

According to Ernst Mayr, a species consists of
  individuals that are characterized by all of the
  following EXCEPT
  a. they are in one or more groups.
  b. they produce fertile offspring.
  c. they are reproductively isola

Andrearcarter95   56   2 Replies

Andrearcarter95

For sexually reproducing organisms, a species consists of

For sexually reproducing organisms, a species consists of

For sexually reproducing organisms, a species
  consists of
  a. individuals sharing a habitat.
  b. a group of reproductive females.
  c. populations that have the potential to interbreed
  and produce fertile offspring.

Jade.Lee   42   3 Replies

qcc2580

Two individuals are members of the same species if they

Two individuals are members of the same species if they

Two individuals are members of the same species if
  they
  a. possess the same number of chromosomes.
  b. breed at the same time.
  c. are phenotypically indistinguishable.
  d. can mate and produce fertile offspring.

skyleton   41   3 Replies

cruzyesica95

Which of the following does NOT promote speciation?

Which of the following does NOT promote speciation?

Which of the following does NOT promote
  speciation?
  a. gamete differences
  b. gene flow
  c. season of fertility
  d. natural selection
  e. genetic drift

Question 2[/

lalalala1   49   2 Replies

lalalala1

Divergence may lead to (Multiple Choice)

Divergence may lead to (Multiple Choice)

Divergence may lead to
  a. genetic drift.
  b. speciation.
  c. genetic equilibrium.
  d. gene flow.
  e. all of these.

Question 2

Speciation occurs
  a. after

vietquocnguyen   66   3 Replies

Duhitzlitzy

The situation in which an embryo produced as a result of a mating between individuals of different ...

The situation in which an embryo produced as a result of a mating between individuals of different ...

The situation in which an embryo produced as a
  result of a mating between individuals of different
  species is incompatible with the mother and is
  subsequently aborted is an example of
  a. temporal isolation.
  b. hybri

rickyfa18   38   3 Replies

Tokelo

Mules are __________ and are subject to __________.

Mules are __________ and are subject to __________.

Mules are __________ and are subject to
  __________.
  a. all males; postzygotic reproductive isolation
  b. all females; postzygotic reproductive isolation
  c. all females; prezygotic reproductive isolation
  d. hybrids; p

qwerqwerqer   33   2 Replies

qwerqwerqer

Postzygotic reproductive isolation occurs (Multiple Choice)

Postzygotic reproductive isolation occurs (Multiple Choice)

Postzygotic reproductive isolation occurs
  a. just after the union of the egg and sperm nuclei.
  b. during embryo development.
  c. during fetal development.
  d. after birth.
  e. with any of these.

[color=#7BCCB

mrs.anderson   55   1 Reply

Jfiscella88

. Seasonal, daily, and monthly all describe what type of reproductive isolating mechanism?

. Seasonal, daily, and monthly all describe what type of reproductive isolating mechanism?

. Seasonal, daily, and monthly all describe what
  type of reproductive isolating mechanism?
  a. behavioral
  b. temporal
  c. mechanical
  d. gamete
  e. ecological

Question 2[/c

Sakura   66   2 Replies

Sakura

Hybrid inviability is the result of what kind of reproductive isolation?

Hybrid inviability is the result of what kind of reproductive isolation?

Hybrid inviability is the result of what kind of
  reproductive isolation?
  a. gamete mortality
  b. prezygotic
  c. behavioral
  d. mechanical
  e. postzygotic

Question 2

Daddy667   52   1 Reply

ben.kenobi24

Which of the following explains why archipelago islands are so important to the study of allopatric ...

Which of the following explains why archipelago islands are so important to the study of allopatric ...

Which of the following explains why archipelago
  islands are so important to the study of allopatric
  speciation?
  a. All are islands surrounded by water.
  b. They are close to the equatorial continents.
  c. They are dis

dixoncsk2062   67   3 Replies

m0502428

The greatest contributor(s) to allopatric isolation is (are)

The greatest contributor(s) to allopatric isolation is (are)

The greatest contributor(s) to allopatric isolation is
  (are)
  a. geographic barriers.
  b. differences in reproductive timing.
  c. gametic incompatibility.
  d. hybrid inviability.
  e. behavioral peculiarities.
[

hannah415   39   3 Replies

transfer

The effectiveness of geographic barriers in promoting speciation is related most to

The effectiveness of geographic barriers in promoting speciation is related most to

The effectiveness of geographic barriers in
  promoting speciation is related most to
  a. the size of the barrier.
  b. the inability of the organisms to overcome the
  barrier.
  c. the speed at which the barrier forms.

ridhima14598   42   1 Reply

domsantos1998

Which of the following is the best definition of sympatric speciation?

Which of the following is the best definition of sympatric speciation?

Which of the following is the best definition of
  sympatric speciation?
  a. species that evolve due to geographical distance
  b. mechanical isolation acts to prevent speciation
  c. breeding behavior that prevents the organisms

Eminoa   37   2 Replies

Eminoa

Speciation caused by a change in the course of a river is an example of __________ speciation.

Speciation caused by a change in the course of a river is an example of __________ speciation.

Speciation caused by a change in the course of a
  river is an example of __________ speciation.
  a. divergent
  b. parapatric
  c. allopatric
  d. convergent
  e. sympatric

Questio

kmtz77   64   2 Replies

kmtz77

Sympatric speciation occurs (Multiple Choice)

Sympatric speciation occurs (Multiple Choice)

Sympatric speciation occurs
  a. before allopatric speciation.
  b. together with allopatric speciation.
  c. after allopatric speciation.
  d. within the home range.
  e. outside the home range.

[fa]

petrajanejob   71   1 Reply

Michael876

Sympatric speciation through polyploidy is a frequent phenomenon in

Sympatric speciation through polyploidy is a frequent phenomenon in

Sympatric speciation through polyploidy is a
  frequent phenomenon in
  a. insects.
  b. mammals.
  c. bacteria.
  d. plants.
  e. protists.

Question 2

Which is

avaasadi   28   2 Replies

avaasadi

Autopolyploids contain __________ the number of parental chromosomes and are usually artificially ...

Autopolyploids contain __________ the number of parental chromosomes and are usually artificially ...

Autopolyploids contain __________ the number of
  parental chromosomes and are usually artificially
  produced through the application of __________.
  a. triple; colchicine
  b. double; heat
  c. double; colchicine
  d.

Ag566   28   2 Replies

Ag566

Polyploid species are least common in

Polyploid species are least common in

Polyploid species are least common in
  a. flowering plants.
  b. mollusks.
  c. insects.
  d. conifers.
  e. mammals.

Question 2

Hybridization of closely related plant

qwerqwerqer   41   3 Replies

tpduncan