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Exams & Certifications

12th Grade Genetics Quizzes, Questions & Answers

Recent Genetics Quizzes

Meiosis I And II: Trivia Quiz! Test

Questions: 20 | Attempts: 2283 | Last updated: Oct 8, 2025

Sample Question
Which of the following best describes this diagram?

Chromosome

Chromatin

Sister chromatid

Homolog

Duplicated Chromosome

Block 1 DNA-rna Mini 1

Questions: 27 | Attempts: 659 | Last updated: Mar 22, 2025

Sample Question
A 3 y.o. patient with delayed mental acuity is shown to have an enzyme deficiency of Histone Acetyltransferase (HAT) activity. What is the most likely outcome of this patient's deficiency, at the level of gene expression?

Ubiquitination of histones H3 and H4 and increased overall transcription

Fragmentation of poorly protected chromosomal DNA and reduced transcription

Activation of histone H3 and H4 gene expression

Reduced transcription rates because nucleosomes occupy promoters

Uncoupling of transcription and translation in neurons

Block 1 Pt 2 Pedigree Genetics Dr Larsen

Questions: 28 | Attempts: 235 | Last updated: Mar 21, 2025

Sample Question
II3 in the pedigree below has two brothers with hemophilia A, a bleeding disorder that is inherited as an X‑linked recessive trait. What is the risk of hemophilia for her children?

1 in 4 for a son, close to zero for a daughter

1 in 2 both for sons and daughters

1 in 2 for a son and 1 in 4 for a daughter

1 in 2 for a son, close to zero for a daughter

1 in 4 both for sons and daughters

Pedigree Quiz: Test Your Knowledge About The Pedigree Diagram

Questions: 28 | Attempts: 32261 | Last updated: Feb 21, 2025

Sample Question
II-3 in the pedigree below has two brothers with hemophilia A, a bleeding disorder that is inherited as an X‑linked recessive trait. What is the risk of hemophilia for her children?

1 in 4 for a son, close to zero for a daughter

1 in 2 both for sons and daughters

1 in 2 for a son and 1 in 4 for a daughter

1 in 2 for a son, close to zero for a daughter.

1 in 4 both for sons and daughters

Take This Quiz Up To Chromosomal Inheritance

Questions: 10 | Attempts: 1057 | Last updated: Oct 6, 2025

Sample Question
In genetics a "wild" type is

The phenotype most commonly found in nature

The dominant allele

Small letter for recessive, captial letter for dominant

The trait found on the x chromosome

A party animal

Hereditas

Questions: 10 | Attempts: 2612 | Last updated: Mar 21, 2025

Sample Question
Sifat pial ayam yang muncul sebagai hasil dari dua gen yang berinteraksi adalah...

Ros

Biji

Pea

Walnut

Bilah

Stages Of Meiosis Trivia Quiz

Questions: 10 | Attempts: 753 | Last updated: Sep 19, 2025

Sample Question
In which phase of meiosis does crossing over happen?

Prophase II

Metaphase I

Metaphase II

Prophase I

Chapter 14 Mendelian Genetics Quiz

Questions: 10 | Attempts: 2128 | Last updated: Mar 21, 2025

Sample Question
Two pea plants heterozygous for pod color and shape (dihybrid) are crossed. Draw a punnet square to determine phenotypic ratio of offspring. The ratio will be:

3:1

9:3:3:1

15:1

12:3:1

DNA Structure And Replication Sample Questions

Questions: 9 | Attempts: 384 | Last updated: Mar 18, 2025

Sample Question
Which of the following statements regarding a double-helical molecule of DNA is true?

All hydroxyl groups of pentoses are involved in linkages

Bases are perpendicular to the axis

Each strand is identical

Each strand has parallel, 5’ to 3’ direction

Each strand replicates itself

Chapter 13 To 16 Homework

Questions: 49 | Attempts: 93 | Last updated: Oct 7, 2025

Sample Question
Genetic testing is often used in treating certain lung cancers to determine how well a cancer will respond to a particular drug or combination of drugs.

True

False

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