6. as you've learned, thalidomide is a teratogen, meaning that it causes
another teratogenic compound is alcohol, which is known to cause bi
and contribute to the development of fetal alcohol syndrome. can you
thalidomide and alcohol in terms of environmental factors that play a
presence of teratogens mean for pregnant women who wish to have a
future children?
7. some animals that look like they exhibit codominance actually do not.
white stripes, obtains its pattern from a series of genes that initiate the
specific parts of its body. different zebras can have different patterns o
example, the plains zebra has wide stripes, while the grevy's zebra ha:
striped and spotted animals that are genetically encoded to have these
8. the fact that the zebra's stripes are passed down in its dna indicates th
advantage. what do you think is the evolutionary need for such comple:

the answer is sex-linked recessive.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.