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12th Grade Genetics Quizzes, Questions & Answers

Recent Genetics Quizzes

Bio 2 - Warm-up Quiz #11

Questions: 12 | Attempts: 314 | Last updated: Sep 6, 2025

Sample Question
Gametes must be haploid because ___.

Gametes are small and can hold only the haploid number of chromosomes

Fertilization results with a haploid zygote

Two gametes will unite during fertilization to create a diploid cell

The gametes’ chromosomes will be replicated prior to cell division

Bio 1 - Unit 6b - Central Dogma

Questions: 27 | Attempts: 1552 | Last updated: Sep 16, 2025

Sample Question
Which of the following is a pair of complementary bases?

Cytosine and cytosine

Thymine and adenine

Adenine and guanine

Thymine and ctyosine

DNA: The Molecule Of Heredity Quiz

Questions: 14 | Attempts: 420 | Last updated: Mar 20, 2025

Sample Question
What did Wilkins and Franklin discover?

DNA is a helix with repeating subunits.

The sequence of bases in DNA is different for each individual.

DNA is a double helix with bases paired to each other.

The sequence of nucleotide bases, read in sets of three, codes for the sequence of a protein.

The amount of A is equal to the amount of T and the amount of C is equal to the amount of G.

Heredity and Evolution Quiz

Questions: 10 | Attempts: 14686 | Last updated: Feb 19, 2025

Sample Question
Mendel observed seven pairs of contrasting characters in Pisum sativum. Which of the following is not one of them?

Tall and dwarf

Yellow and green seed colour

Terminal and axial Flower

Smooth and rough stem

De Bio Genetics Review (Not Graded)

Questions: 19 | Attempts: 463 | Last updated: Mar 19, 2025

Sample Question
Cystic fibrosis is an autosomal recessive genetic disorder. If one parent of a child is a carrier, has one copy of the faulty cystic fibrosis gene (Cc), and the other parent is not a carrier (genotype = CC) what is the % chance of the child having the disease?

0

25

50

75

100

Genetic Engineering, Forensics, And Biology Quiz

Questions: 10 | Attempts: 1158 | Last updated: Jan 22, 2025

Sample Question
What is the name of the enzyme that cleaves (cuts) DNA into fragments?

Ligase

DNA synthase

Restrictive Enzymes

Lactase

Cp Biology 2 Final Exam Part A

Questions: 31 | Attempts: 137 | Last updated: Feb 22, 2025

Sample Question
If a pea plant were homozygous recessive for height, how would its alleles be represented?

Tt

TT

Tt

TT

EOC Practice Test #3

Questions: 35 | Attempts: 509 | Last updated: Mar 21, 2025

Sample Question
Which molecule is paired with its correct role in protein synthesis?

Nucleus - forms peptide bonds

Ribosome - carries DNA instructions

MRNA - joins amino acids

TRNA - transfers amino acids

Exam 7: Inheritance Patterns

Questions: 36 | Attempts: 574 | Last updated: Mar 20, 2025

Sample Question
In humans, pigmented skin is dominant to non-pigmented skin (albinism). What is the genotype of an individual with albinism?

Carrier

Heterozygous

Homozygous dominant

Homozygous recessive

Genetics Problem Test 2

Questions: 32 | Attempts: 311 | Last updated: Mar 21, 2025

Sample Question
_____ genotypes are made of the same alleles.

Alleles

Dominant

Recessive

Heterozygous

Homozygous

Monohybrid

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