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Benchmark 3 Review 1
Test Description: Benchmark 3 Review 1
Instructions: Answer all questions to get your test result.
1) A straight pinky (S) is dominant to a bent pinky. Dimples (D) are dominant to not having dimples. What are the chances (in fraction) that offspring would have a bent pinky and no dimples if their parents were heterozygous for both traits?
A
1/16
B
9/16
C
3/16
D
16/16
2) Translate the following mRNA AUG UCU UAC AAG CAU
A
Met Phe Ile Arg Gly
B
Met Asp Glu Stop His
C
Met Ser Tyr Lys His
D
Met Cys Trp Tyr Stop
3) Find the complementary DNA bases for this DNA strand ATC GGA TCT CCC ATC
A
TAG CCT AGA GGG TAG
B
ATC GGA TCT CCC ATC
C
AAG CGA TAC CGA TTT
D
UAG CCU AGA GGG UAG
4) What type of RNA is used during transcription?
A
tRNA
B
mRNA and tRNA
C
mRNA, tRNA, and rRNA
D
mRNA
5) Which organelle does transcription take place?
A
nucleus
B
cell membrane
C
mitochondria
D
ribosome
6) Which of the following is a true statement describing DNA or RNA?
A
RNA is double stranded
B
RNA has the nitrogen bases A, T, C and G
C
DNA is double stranded
D
DNA has the sugar ribose
7) Freckles (F) are dominant to not having freckles. Widow's peak (W) is dominant to not having a widow's peak. What is the genotype for not having freckles and having a widow's peak?
A
ffww
B
FfWw
C
Ffww
D
ffWw
8) Crossing over takes place during this phase?
A
cytokinesis
B
anaphase 2
C
prophase 1
D
metaphase
9) A human karyotype shows 47 chromosomes with the sex chromosomes being XX. This person is
A
a female with a genetic disorder
B
a normal male
C
a normal female
D
a male with a genetic disorder
10) Yellow seeds are dominant to green seeds in pea plants. If both parents are heterozygous what are the chances (in fraction) that the offspring will have yellow seeds?
A
3/4
B
2/4
C
1/4
D
4/4
11) Which organelle breaks down food for energy?
A
mitochondria
B
cell membrane
C
vacuole
D
chloroplast
12) Uncontrollable cell growth is called
A
apoptosis
B
mitosis
C
interphase
D
cancer cells
13) This type of protein that speeds up chemical reactions is called
A
enzymes
B
amino acids
C
carbohydrates
D
DNA
14) A cell is placed into a solution. After 24 hours, the cell enlarges and bursts. What type of solution was it placed in?
A
isotonic
B
hypertonic
C
acidic
D
hypotonic
15) Which macromolecule has the elements C, H, and O?
A
proteins
B
nucleic acids
C
lipids
D
carbohydrates
16) Which organelle allows materials to enter or leave the cell?
A
cell membrane
B
mitochondria
C
vesicle
D
cytoplasm
17) What type of transport moves molecules from a low to high area of concentration using energy?
A
passive transport
B
diffusion
C
osmosis
D
active transport
18) If you play classical music while studying, you will get higher test scores. What is the independent variable?
A
studying
B
playing classical music
C
getting a higher test score
D
how long you study
19) If you play classical music while studying, you will get higher test scores. What is the dependent variable?
A
getting a higher test score
B
playing classical music
C
where you study
D
studying
20) If you play classical music while studying, you will get higher test scores. What is the control group?
A
Group getting a higher test score
B
Group not playing classical music while studying
C
Group getting a lower test score
D
Group playing classical music while studying
*select an answer for all questions
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