ACT Science Game

After Cross 1 but before Cross 2, a student hypothesized that each of the parents in Cross 1 had the genotype BBEE. Was this hypothesis consistent with the results of Cross 1?

• Yes, because all the offspring of Cross 1 had black coats.

• Yes, because all the offspring of Cross 1 had yellow coats.

• No, because all the offspring of Cross 1 had black coats.

• No, because all the offspring of Cross 1 had yellow coats.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What was the Gene B and Gene E genotype of the off-spring of Cross 2 that had a brown coat?

• bbee

• BREE

• BbEE or BbEe

• bbEE or bbEe

Tags

NGSS.HS-LS3-1

Based on Tables 1 and 2, what fraction of the offspring of Cross 3 had 1 or more copies of the E allele of Gene E?

• 1/4

• 1/3

• 2/3

• 15/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Consider the offspring of each of the 3 crosses. Based on Tables 1 and 2, some of the offspring of which of the crosses, if any, could have had only recessive alle-les of Gene B and Gene E ?

• Cross 1 only

• Crosses 2 and 3 only

• Crosses 1, 2, and 3

• None of the crosses

Suppose 2 of the offspring from Cross 3 with yellow coats are crossed. What percent of the resulting off-spring will have yellow coats?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.MS-LS4-4

Approximately what percent of the normal gametes produced by a dog with the genotype BbEE will contain the B allele?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-3

In Experiment 2, the greatest average wet strength was observed for the PTs that were submerged in water for 10 min after having been heated in an oven at what temperature?

• 110 degrees Celsius

• 120 degrees Celsius

• 130 degrees Celsius

• 140 degrees Celsius

Tags

NGSS.HS-PS1-5

In Experiment 2, for PTs that were submerged in water for 2 hrs, as the oven temperature increased from 110° C through 140° C, the W/D value:

• Increased only.

• Decreased only.

• Remained the same

• Varied, but with no general trend.

Tags

NGSS.MS-PS1-4

In Step 1 of Experiment 1, the PTs that would become controls were submerged in what liquid, and in Step 3 of Experiment 1, these control PTs were heated in an oven at what temperature?

• Water / 25 degrees C

• Water / 85 degrees C

• GLA Solution / 25 degrees C

• GLA Solution / 85 degrees C

Tags

NGSS.MS-PS1-4

In which of Experiments 1 and 2, if either, did the students measure the wet strengths of PTs that had been submerged in water for a total of 18 hr?

• Experiment 1 only

• Experiment 2 only

• Both

• Neither

Tags

NGSS.MS-PS1-2