What is the primary purpose of a Punnett square in genetics?

Punnett Squares and Genetic Crosses

Interactive Video
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Biology, Science, Chemistry
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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
To predict environmental adaptations
To determine the lifespan of organisms
To graphically solve genetic problems
To calculate the exact number of offspring
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a Punnett square, where are the gametes of the parents placed?
Inside the square
On the outside of the square
In the center of the square
At the bottom of the square
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the genotype of a heterozygous individual for tongue rolling?
Big R Big R
Little r Little r
Big R Little r
Little r Big R
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many offspring can two heterozygous parents produce in a single gene cross?
Two
Three
Four
Five
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the phenotype of an individual with a homozygous recessive genotype for tongue rolling?
Can roll tongue
Cannot roll tongue
Partially roll tongue
Rolls tongue occasionally
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If half of the offspring cannot roll their tongue, what can be inferred about the parents?
Both are homozygous dominant
One is heterozygous, the other is homozygous recessive
Both are homozygous recessive
Both are heterozygous
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of placing the dominant allele first in a genotype?
It affects the phenotype
It is a convention for clarity
It changes the genetic makeup
It is required by Mendel's laws
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