What common mistakes were identified in the early submissions of homework assignment number three?

Genetic Probability and Ratios

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Biology
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Incorrect use of Punnett squares
Misreporting genotypic and phenotypic ratios
Incorrect calculation of probabilities
Failure to identify dominant alleles
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of Mendelian traits, what does a dominant allele represent?
An allele that is expressed only in heterozygous conditions
An allele that is expressed only in homozygous conditions
An allele that is never expressed
An allele that is always expressed
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When setting up a Punnett square, what is the genotype of two heterozygous tall pea plants?
TT and tt
Tt and Tt
tt and tt
TT and Tt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many possible genotypes can result from a cross between two heterozygous parents?
Five
Four
Two
Three
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct way to report genotypic ratios?
Using a semicolon
Using a colon
Using a comma
Using a dash
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the classic phenotypic ratio for a cross between two heterozygous individuals?
1:1
2:1
3:1
4:1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How should phenotypic ratios be reported for clarity?
By using percentages
By using decimals
By associating numbers with phenotypes
By listing only the numbers
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