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honeybees are unusual in that male bees drones have only one copy of each gene while female bees have two copies of their genes that is because
what is the meaning of darwins expression descent with modification descent with modification refers to natural selection descent with modification
which statement is correct a synapomorphies identify monophyletic groups b a synapomorphy may arise due to covergent evolution c a synapomorphy is an
you are given a metaphase chromosome preparation a slide from an unknown organism that contains 12 chromosomes two that are clearly smaller than the
giemsa stain is a basic stain thus the major chromagen is positively charged cation why does this stain have an affinity for the bacteria cell wall
using an average wavelength of 450 nm 045 um can you resolve two objects that sit greater than 200nm apart from one another use mathematical
theoretically you can build a light microscope with unlimited magnification but can you build a light microscope with unlimited resolution why or why
a woman was injured several years ago in a car accident and she was diagnosed with a herniated disc can you please explain using the correct
true or false it would be difficult to assess whether the drug-susceptible or drug-resistant phenotype in a population of mycobacterium tuberculosis
which of these lists contains the four postulates of natural selection which of these lists contains the four postulates of natural selection
the human abo blood type codominant alleles a and b are dominant to o a man with blood type b and women with blood type a could potentially have
biology once said why this statement is logical in terms of kin selection and use the coefficient of relatedness hed be willing to lay down his life
there is a lot of dataset and hypothese that attempt to explain why there was a cambrian explosion using all supporting ideas explain and write a
in the evolution of whales there is evidence that whales and hippo form a monophyletic group show all the evidence that supports the close
permanent tattoos are made by injecting pigment into the skin into which part of the skin is the pigment injected the epidermis or
identify the abnormal protein and state how the abnormal protein affects the function of the
discuss six bad listening habits which do you think is the biggest challenge for you
how is waters importance to life reflected in the normal range of internal ph values that living things are likely to
create a dichotomous key the following organisms ant butterfly fly beetle grass hopper wasp ladybug roach and
phenylketonuria is a severe form of mental disability caused by a homozygous recessive allele the condition affects about 1 in 10000 neborn
the basque people who lived in the pyrenees mountains between france and spain have one of the highest frequencies of the d allele in the rh system
in one study of a heavily polluted area near birmingham england a researcher observed a frequency of 87 melanic biston betlularia calculate the
what is the prevailing wind direction in equatorial regions affected by the trade winds a the wind blows from east to west b the wind blows from west
a cell in g1 of interphase has 12 chromosomes how many chromosomes and dna molecules will be found per cell when this original cell progresses to the
all of the following make meiosis different from mitosisexcept ameiosis comprises two separate divisions b meiosis only occurs during embryonic