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WorksheetsFinal Part B
Total questions: 23
Worksheet time: 49mins
Which sequence correctly shows the levels of organization for structure and function in humans?
specialized cell > tissue > organ > organ system
tissue > organ > organ system > specialized cell
specialized cell > organ > tissue > organ system
organ system > specialized cell > organ > tissue
Which product is the result of mitosis?
two daughter cells
two identical nuclei
two strands of DNA
two sister chromotids
Which occurrence is the result of the cell cycle in unicellular organisms?
cell repair
cell growth
cell replacement
cell reproduction
Why is the cell cycle important in mulicellular organisms
cell repair
cell growth
cell replacement
all of these
Which is the result of the cell cycle?
two new identical cells
two halves of the original cell
one new cell and one original cell
no cells
Unlike sexual reproduction, asexual reproduction
requires sex cells
involves a lot of time
requires only one parent
involves mating of two parents
Which of the following are examples of asexual reproduction?
budding
binary fission
regeneration
all of these
Which result is caused by sexual reproduction?
one or more clones
several sex cells
new organism(s)
none of the above
Which process produces egg cells and sperm cells?
meiosis
budding
binary fission
mitosis
Which is an advantage of sexual reproduction?
offspring are identical to parents
offspring produced with variation
no mate required
reproduction is fast
An animal has an allele for white fur, but its fur is black. The allele for white fur is:
dominant
incomplete
codominant
recessive
Which of the parent plants is homozygous for their height?
TT
Tf
none
both
Which two offspring from the Punnett square would be able to produce a recessive child?
Offspring 1 & 2
Offspring 1 & 3
Offspring 2 & 4
Offspring 3 & 4
A child has red hair, both parents have brown hair. What is the most likely reason?
The red hair came from a sibling
Both parents have dominant genes for red hair
One parent is homozygous dominant and one is homozygous recessive for hair color
The child received recessive genes from both parents
If the male is homozygous recessive (nn), what is the mother's genotype?
NN
Nn
nn
NC
Breeding a designer dog. like a labrodoodle from a poodle and a labrador retriever is an example of what technique?
selective breeding
cloning
natural selection
genetic engineering
For what purposes can DNA fingerprinting (profiling) be used?
to identify suspects in a crime
to determine the phenotype of an organism
to show how a trait is passed from generation to generation
to create a dichotomous key for classification
What is genetic engineering?
removing a gene from one organism and putting it into another organism
random changes that occur naturally
the building of a new organism from only DNA
making a new gene from nucleotide pieces
Why would researchers use two sheep with very different characteristics in a cloning experiment?
The sheep are different so genetic material would mix in the offspring
The genetic make-up of the offspring would easily show which sheep donated the genetic material to the cloned organism
The researchers just picked 2 sheep that happened to be different
There are no differences in the 2 sheep that were used.
What is an adaptation?
A body part that has lost its original function through evolution
A characteristic that better equips an organism to survive in its environment
A feature that appears briefly during early development
A slight difference among the individuals in a species.
What causes variations to arise in a population?
changes in the environment
competition for limited resources
random mutations in genes
rapid population increases
Which is NOT an example of evidence to support the Theory of Evolution?
Homologous structures
Similar embryology
How long an organism lives
Comparing DNA sequences
According to Darwin's theory, what process causes populations to change as their environment changes?
natural selection
selective breeding
variation
artificial selection
