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67 Cards in this Set
- Front
- Back
T or F: Antibiotics are used to treat viral infections |
false |
|
An affected individual for an autosomal recessive genetic disorder is: |
homozygous recessive |
|
T or F: The dependent variable is usually held at its default level or is not present in the control group |
false |
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T or F: All variables not under study in an experiment can be kept the same between control and experimental groups |
false |
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In the gel electrophoresis experiment what was the probable charge of the molecules that moved fastest to the positive end of the gel chamber? |
Negative |
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Which of the following is an example of heterozygous genotype? |
Aa |
|
T or F. you test a new antibiotic to see if it is effective at killing bacteria. The antibiotic is the independent variable |
True |
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Plants from which group have flagellated sperm |
mosses |
|
T or F: a sporophyte produces spores |
True |
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In pea plants, the tall allele is dominant to the dwarf allele. What phenotypic ratio would you expect to get from a cross of a homozygous tall plant with a homozygous dwarf plant? |
all tall plants |
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Humans are ________ organisms |
eukaryotic |
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In monohybrid cross the expected genotypic ratio of the offspring is: |
1:2:1 (phenotypic is 3:1) |
|
T or F: Gymnosperms are gametophyte dominant |
false |
|
T or F: When testing the effects of an antibiotic on two types of bacteria to see which bacterial type is more susceptible, the bacteria type is the independent variable |
True |
|
How many offspring are expected to have dominant phenotype in a monohybrid cross? |
3 |
|
T or F: most environmental bacteria are helpful to human interests |
True |
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True or False: X-Linked genes occur only on the X chromosome |
True |
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A negative control: |
Does not contain the substance you are testing for |
|
Mosses have which of the following characteristics? |
-flowers, seeds -seeds, vascular tissue -vascular tissue, flagellated sperm *cuticle, flagellated sperm |
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Use a Punnet Square to determine the probable outcome of crossing individuals who are heterozygous for a single genetic trait (a monohybrid cross). What percent of the offspring is expected to display the phenotype of the dominant allele?
|
75% |
|
T or F: Antibiotics may affect Gram negative bacteria differently than Gram positive bacteria |
True |
|
Which of the following plants has fruits? |
-mosses -ferns -gymnosperms *angiosperms |
|
In Mendelian inheritance, when the genotype for one gene consists of a dominant and recessive allele, the phenotype will be: |
dominant |
|
True or False: A phenotype is the measurable or viewable trait for a given genotype |
True |
|
Eukaryotes have: |
a nucleus and membrane bound organelles |
|
T or F: you test a new antibiotic to see if it is effective at killing bacteria. The antibiotic si the dependent variable |
False |
|
T or F: You test a new antibiotic to se if it is effective at killing bacteria by measuring the zone of inhibition. The zone of inhibition is the independent variable |
false |
|
Which of the following statements is true: |
-RNA is usually double stranded. - T is present in RNA, but not in DNA - U is present in DNA, but not RNA *DNA is usually double stranded |
|
T or F: opportunistic infections may occur if antibiotics are used in inappropriate situations |
true |
|
Is the sequence A-T-T-G-G-C-A-C from a strand of RNA or DNA? |
DNA |
|
T or F: The working hypothesis essentially says that the independent variable is not responsible for changes in the dependent variable |
False |
|
We have obtained part of a DNA sequence from a jackrabbit for the spirit gene, it is A-T-G-T-C-G-A-T. What will the complementary RNA sequences be? |
UACAGCUA |
|
Which of the following is not a benefit of bacteria? |
atmospheric penetrance |
|
T or F: small sample sizes in an experimental study should reduce confidence in the results of the study |
True |
|
T or F: mosses are gametophyte dominant |
True |
|
What do we mean by the term "naked" seed? |
There is no fruit around the seed |
|
Which of the following organisms utilizes DNA as its genetic material but does not have their DNA encased in membrane |
-animal -plant *archaea -fungi |
|
You should accept a working hypothesis if a ttest gives a result of > 0.05 |
True |
|
T or F: If an organism's genotype is AA, the organism is homozygous dominant |
True |
|
What is the name for an evergreen? |
gymnosperms |
|
T or F: gymnosperms are sporophyte dominant |
True |
|
A male who has only one recessive allele for colorblindness, an X-linked disorder, will have what phenotype |
colorblindness |
|
T or F: You should accept a working hypothesis if a ttest gives a result of < 0.05 |
True |
|
T or F: angiosperms are gametophyte dominat |
False |
|
Which of the following plants has cuticle but not vascular tissue? |
*mosses -ferns -gymnosperms -angiosperms |
|
How many offspring are expected to be heterozygous in a monohybrid cross? |
2 |
|
T or F: a negative control group contains the independent variable under study |
False |
|
You should accept a null hypothesis if a ttest gives a result of > 0.05 |
true |
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Males always express the allele inherited from their mother for X-linked traits, regardless of the dominant/recessive relationship that may exist for that gene |
True |
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A monohybrid cross would result in which genotypes in the offspring |
AA, Aa, and aa |
|
What are alleles |
alternative forms of a gene for a trait, such as blue eyes or brown eyes |
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T or F: a genotype can always be determined by looking at the phenotype of an individual |
false |
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Colorblindness is an X-linked trait. A colorblind woman has children with a normal man. What percentage of their female offspring are expected to be colorblind? |
NONE |
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Transcribe the following DNA sequence into RNA: ATACG |
UAUGC |
|
What kind of bond connects the two strands of DNA together? |
hydrogen |
|
G pairs with _____ in DNA, and _____ in RNA |
C, C |
|
State the central dogma of biology |
DNA is transcribed to RNA which is translated to Protein |
|
What process converts DNA into mRNA? |
transcription |
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Which type of RNA brings amino acids to the ribosome? |
tRNA |
|
Why do you need 11 codons to produce a protein that is 10 amino acids long? |
you need the stop codon |
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List the anticodons for the following: AUG UUC ACU |
UAC AAG UGA |
|
T or F: bacteria use many types of organelles, like mitochondria and a nucleus, to perform cellular functions |
False |
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Describe what is meant by zone of inhibition |
its where bacteria does not grow because the antibiotic worked |
|
The gametophyte is dominant in |
mosses |
|
a gymnosperm has |
a cuticle, vascular tissue, and seeds |
|
List the two vascular tissues in plants and name each of their functions |
xylem: help water transport phloem: food and nutrient transport |
|
all flowering plants |
have fruit |