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Monohybrid & Dihybrid Crosses

Authored by Joseph Kamper

Biology

9th - 12th Grade

NGSS covered

Used 90+ times

Monohybrid & Dihybrid Crosses
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24 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mendel proposed that traits observed in pea plants resulted from a combination of "factors" inherited from each parent. His description of these "factors" can be considered the first scientific definition of the role of —

ribosomes

meiosis

genes

cell nuclei

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mendel's early work with pea plants demonstrated a significant genetic discovery. The crossing of homozygous tall pea plants with homozygous short pea plants always resulted in tall plants and demonstrated that tallness in pea plants is a trait that is —

blended

dominant

mutated

recessive

Tags

NGSS.HS-LS3-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The physical expression of a genetic trait is called a

mutation

genotype

crossing over

phenotype

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Start with the P generation with the following genotypes (AA x aa). Based on classical Mendelian inheritance, how will a cross between two homozygous parents, one dominant, one recessive, influence future generations?

The F1 generation will show an even split between the dominant phenotypes and the recessive genotype.

The F1 generation will show the dominant trait and future crosses will continue to produce genotypes expressing the dominant trait.

Although the F1 generation will all show the dominant trait, the offspring will all be heterozygous and increase the chances of future variation.

The F1 generation will show a mix of the dominant phenotype and recessive phenotype and over generations, the recessive trait will increase in number.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Using the chart shown, correctly identify how the genotype would be written for a heterozygous round seed shape.

RR

Rr

rr

rR

Tags

NGSS.HS-LS3-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A couple has three brown-eyed children. The parents are brown-eyed (Bb). The allele for brown eyes is dominant over the allele for blue eyes. They believe the fourth child they have will be blue-eyed. Which statement below explains what actually will happen?

The couple will have a blue-eyed fourth child.

The couple will have a brown-eyed fourth child.

They have a 75% chance of having a blue-eyed child.

They have a 25% chance of having a blue-eyed child.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

Who is the father of genetics? 

Charles Darwin 
Gregor Mendel
Dimitri Mendeleev 
Hans Krebs 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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