Genetics

DNA Structure and Function

Subtopic

DNA Structure and Function under Genetics for Grade 9 IB.

Preview questions (no answers)

1.
$Genetic information is passed from parents to offspring through which molecule?$
A. $Glucose$
B. $DNA$
C. $Hemoglobin$
D. $Lipids$
2.
$Which nitrogenous base starts with the letter 'C'?$
A. $Cytosine$
B. $Choline$
C. $Cysteine$
D. $Chlorophyll$
3.
$A-A-T-G-C-C$
A. $T-T-A-C-G-G$
B. $C-C-G-T-A-A$
C. $G-G-C-A-T-T$
D. $A-A-T-G-C-C$

Download the worksheet for Genetics - DNA Structure and Function to practice offline. It includes additional chapter-level practice questions.

Chromosomes and Genes

Subtopic

Chromosomes and Genes under Genetics for Grade 9 IB.

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Preview questions (no answers)

1.
$Which part of the cell acts as the control center and contains the chromosomes?$
A. $Mitochondria$
B. $Ribosome$
C. $Nucleus$
D. $Vacuole$
2.
$What is the primary reason why offspring look similar to, but not exactly like, their parents?$
A. $They inherit all genes from only one parent$
B. $They inherit a unique combination of genes from both parents$
C. $DNA changes completely every generation$
D. $Genes are not involved in physical appearance$
3.
$Which of the following would result in a male offspring in humans?$
A. $An X egg fertilized by an X sperm$
B. $A Y egg fertilized by an X sperm$
C. $An X egg fertilized by a Y sperm$
D. $A Y egg fertilized by a Y sperm$

Download the worksheet for Genetics - Chromosomes and Genes to practice offline. It includes additional chapter-level practice questions.

Mendelian Inheritance and Punnett Squares

Subtopic

Mendelian Inheritance and Punnett Squares under Genetics for Grade 9 IB.

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Preview questions (no answers)

1.
$Which of these genotypes is homozygous dominant?$
A. $tt$
B. $Tt$
C. $TT$
D. $tT$
2.
$If a characteristic like 'inflated pod' is dominant and 'constricted pod' is recessive, what happens when a plant has one allele for each?$
A. $The pods will be constricted$
B. $The pods will be inflated$
C. $The pods will be half-inflated$
D. $The plant will not produce pods$
3.
$BB$
A. $0%$
B. $50%$
C. $75%$
D. $100%$

Download the worksheet for Genetics - Mendelian Inheritance and Punnett Squares to practice offline. It includes additional chapter-level practice questions.

Genetic Mutations

Subtopic

Genetic Mutations under Genetics for Grade 9 IB.

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Preview questions (no answers)

1.
$A chromosomal mutation involves changes in:$
A. $A single nitrogen base$
B. $The sugar group$
C. $Large segments of DNA or whole chromosomes$
D. $The cell's cytoplasm$
2.
$Which of these is a consequence of a mutation in the hemoglobin gene?$
A. $Type 1 Diabetes$
B. $Sickle cell anemia$
C. $Color blindness$
D. $Lactose intolerance$
3.
$If a mutation causes a change in a bird's beak shape that allows it to eat more types of seeds, this mutation is:$
A. $Harmful$
B. $Neutral$
C. $Advantageous$
D. $Silent$

Download the worksheet for Genetics - Genetic Mutations to practice offline. It includes additional chapter-level practice questions.

DNA Structure and Function

❓Preview questions (no answers)

Chromosomes and Genes

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Mendelian Inheritance and Punnett Squares

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Genetic Mutations

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