Introduction to Genetics in Biology
Science
General
9 questions
~18 mins
1 views0 downloads
About This Worksheet
A medium difficulty Science worksheet on genetics basics for grade 7 students. Includes questions on Genetics Basics.
Worksheet Preview
Full preview • 9 questions
Introduction to Genetics in Biology
Subject: ScienceGrade: General
Name:
Date:
TeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizzTeachWhizz
Introduction to Genetics in Biology
Instructions: Read each question carefully and select or write the correct answer. For multiple choice questions, circle the best option. For short answer questions, write your answer clearly in the space provided.
A
Genetics Basics
1.
What is the hereditary material that carries genetic information in living organisms?
[1 mark]AProtein
BCarbohydrate
CDNA
DLipids
2.
Write a short explanation of what a gene is.
[2 marks]3.
Which of the following best describes dominant and recessive alleles?
[1 mark]ARecessive alleles are always expressed; dominant alleles are only expressed when two copies are present.
BDominant alleles are always expressed; recessive alleles are only expressed when two copies are present.
CBoth alleles are always equally expressed.
DDominant alleles are only present in some organisms.
4.
Name the chromosome structure that carries genetic information.
[1 mark]5.
In a Punnett square, if both parents are heterozygous for a trait (Aa), what is the probability that their offspring will be homozygous recessive (aa)?
[2 marks]6.
Which term describes the physical appearance of an organism resulting from its genes?
[1 mark]AGenotype
BAllele
CGene
DPhenotype
7.
Describe what is meant by genetic variation.
[2 marks]8.
What is the role of meiosis in genetics?
[1 mark]AIt reduces the chromosome number by half to produce gametes.
BIt produces identical copies of cells.
CIt repairs damaged DNA.
DIt controls physical traits.
9.
Identify the genetic process that results in new combinations of alleles in offspring.
[2 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
- • Change grade level (Grade 6 → Grade 7)
- • Swap topics (Harry Potter → Macbeth)
- • Add more questions (10 → 15)
- • Adjust difficulty
Details
- Created
- 5/10/2025
- Updated
- 12/31/2025
- Type
- worksheet