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WorksheetsDia Review, Evolution and Genetics
Total questions: 23
Worksheet time: 24mins
Evolution, gravity, and plate tectonics are all examples of scientific...
hypotheses
theories
laws
The pelvic bone of whales is not needed for movement within the water. This is an example of a(n) ______________ structure.
vestigial
analogous
homologous
The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) ______________ structure.
vestigial
analogous
homologous
Many different groups of organisms have wings, even though they do not share a recent common ancestor. This is because they evolved in environments with similar selective pressures. Wings are an example of a(n) ______________ structure.
vestigial
analogous
homologous
Adaptations are:
physical or behavioral tendencies.
physical or behavioral characteristics that help an organisms survive and reproduce.
physical or behavioral characteristics that do not help the organism in any way.
genetic mutations that have gone wrong.
The exact genetic makeup of an organism, as expressed by pairs of letters.
allele
Which of the following alleles is homozygous (purebred) recessive?
TT
Tt
tt
ts
Which of the following is an inheritable genetic trait?
language
type of music you like
eye color
slow growth due to insufficient nutrition.
Many farmers around the world have made use of genetically modified crops instead of organic. What is one benefit of these modified crops?
They are proven to be healthier for you
They have smaller root systems, causing more erosion of the environment.
They increase biodiversity
They grow and develop faster, allowing for more product.
Scientists have found evidence that about 2.4 million years ago a gene regulating jaw muscles mutated and may have led to the more graceful human jaw we see today. The diagram below shows the skulls of 3 hominid species. Which statement below most closely explains the link between jaw size and hominid evolution?
The jaws of hominids evolved to be smaller and less protruding over time as did the skull.
The jaws of hominids evolved to be larger and more protruding over time.
There appears to be no change in the jaws of hominids over time.
The jaws of hominids changed over time due to a change in brain size
How does embryology support the Theory of Evolution?
It shows that embryos who develop similarly share a common ancestor
It shows that embryos who develop similarly are not related to one another
It shows that organisms have the ability to evolve, or change, over time
What did the Miller Urey experiment prove?
Early Earth conditions could have resulted in the creation of the first Organic Compounds.
There were elements present on early earth that are not today.
The first ever cells were formed on early earth under specific conditions.
Life can be made in a lab.
In horses, the alleles for chestnut hair and white hair mix together when both present. What is this an example of?
Codominance
Incomplete Dominance
Polygenic
Sex-Linked
Color blindness is a recessive, sex-linked trait. A woman who is colorblind and a man who is normal sighted, have a child. What is the probability of the child phenotype?
25% colorblind boy,
25% colorblind girl, 25% normal boy, 25% normal girl
50% colorblind boy
50% colorblind girl
25% colorblind boy
25% normal boy
50% colorblind girl
25% colorblind boy
25% normal boy
50% normal girl
During meiosis, the 2 chromosomes that code for the same trait separate, assuring that only one copy of each gene is passed on to offspring from each parent. This is an example of
Mendel's Law of Segregation
Mendel's Law of Independent Assortment
Mendel's Law of Dominance
Natural Selection
