Throughout the reflection, make sure you have a copy of the Student Guide and your data table.
In your experiment, you tested this
... [Show More] hypothesis:
Hypothesis: If a mouse inherits a particular form of one trait, then the inheritance of the other trait will not be affected because alleles assort independently.
The hypothesis would not have been supported by the data if
traits independently assorted in approximately a 9:3:3:1 ratio.
the traits for white fur and red eyes were always inherited together.
all the F1 offspring had the same phenotype. CORRECT ANSWER the traits for white fur and red eyes were always inherited together.
Below is data for 250 offspring mice, as produced in a laboratory.
Notice that the predicted percentages and laboratory percentages are not the same. These differences most likely result from. CORRECT ANSWER Expected randomness
A cross was performed, and the offspring shown to the right were produced. What is the most likely genotype for the parents?
Bbee × bbEE
BbEE × Bbee
BbEe × BbEe
BBEE × bbee CORRECT ANSWER BbEe × BbEe
Select all the offspring phenotypes that could be produced from a BbEE x bbee cross (shown above).
black fur, red eyes
black fur, black eyes
white fur, black eyes
white fur, red eyes CORRECT ANSWER black fur, black eyes
white fur, black eyes
Cross a parent that is homozygous recessive for both traits (bbee) with a dihybrid (BbEe).
First, draw a Punnett square in your notes.
For each offspring in the Punnett square, determine the phenotype.
In other words, what are the fur color and eye color?
Finally, use that information to fill in the predicted fraction of each phenotype in the data table below. CORRECT ANSWER Black fur and Black eyes: 4/16
Black fur and Red eyes: 4/16
White fur and Black eyes: 4/16
White fur and Red eyes: 4/16
Two true-breeding guinea pigs were crossed. One had short, black fur, and the other had long, brown fur. Fur length is carried on one gene and fur color on another. Select all offspring phenotypes that you would expect in later generations if...
. . . the genes are nearby on the same chromosome.
short, black fur
long, black fur
short, brown fur
long, brown fur
. . . the genes assort independently.
short, black fur
long, black fur
short, brown fur
long, brown fur CORRECT ANSWER Short, black fur
Long, brown fur
Short, black fur
Long, black fur
Short, brown fur
Long, brown fur
Fruit flies in the wild have brown bodies, red eyes, and straight wings. Many variations have been produced and used to study genetics. Consider the data below.
Data 1: Traits for curly wings and black body tend to be inherited together when dihybrids for these traits are crossed.
Data 2: The traits for white eyes and curly wings recombine in the expected 9:3:3:1 when dihybrids for these traits are crossed. [Show Less]