8th grade genetics
Authored by Firat Meydan
Science
7th - 8th Grade
NGSS covered
Used 602+ times
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This quiz thoroughly assesses 8th grade genetics concepts, covering the fundamental principles that form the foundation of heredity and genetic inheritance. Students need to understand key vocabulary including genotype, phenotype, heterozygous, homozygous, dominant, and recessive traits, as well as distinguish between these paired concepts. The questions require mastery of Mendelian genetics principles, including how to analyze genetic crosses and predict offspring ratios using tools like Punnett squares. Students must comprehend the cellular basis of inheritance, recognizing that meiosis produces gametes with half the chromosomal complement of parent organisms, and understanding how chromosomes carry genetic information. Advanced concepts include incomplete dominance, codominance, and the distinction between these inheritance patterns. The quiz also tests knowledge of genetic tools such as pedigrees for tracing traits through generations and introduces genetic engineering concepts. Students need strong analytical skills to work through probability problems and interpret genetic scenarios involving different inheritance patterns. Created by Firat Meydan, a Science teacher in US who teaches grade 7-8. This comprehensive genetics quiz serves multiple instructional purposes in the middle school science classroom, functioning effectively as a unit review before summative assessments or as formative assessment to gauge student understanding throughout the genetics unit. Teachers can deploy this quiz as a warm-up activity to activate prior knowledge, assign it for homework to reinforce classroom learning, or use it for test preparation to help students identify areas needing additional study. The variety of question types, from basic vocabulary to applied problem-solving, makes it ideal for differentiated instruction and allows teachers to target specific learning gaps. This assessment aligns with Next Generation Science Standards MS-LS3-1 (developing and using models to describe genetic inheritance patterns) and MS-LS3-2 (developing and using models to describe asexual and sexual reproduction), while also supporting Common Core mathematical practices through probability calculations and data analysis inherent in genetic crosses.
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
What does heterozygous mean?
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A heterozygous yellow pea plant's genotype would be:
Tags
NGSS.HS-LS3-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following cell types is formed by meiosis?
Tags
NGSS.HS-LS3-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Incomplete dominance means that the traits are
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Term for homozygous organisms that display two dominant phenotypes at the same time
Tags
NGSS.HS-LS3-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-3
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