MEDIUM
Lower Secondary Stage 9
IMPORTANT
Earn 100

Suggest one advantage and one disadvantage of using a dichotomous key to identify something.

Important Questions on Variation and Inheritance

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 6>Q 1
What is the substance that makes up genetic material in plants and animals?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 6>Q 1
 Where in a human cell would you find the genetic material?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 6>Q 2
 What is gene?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 6>Q 2
Suggest three examples of characteristics controlled by genes in humans.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 6>Q 3
Why do human gametes only have 23 chromosomes?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 7>Q 4
 Which scientists were involved in the discovery of structure of DNA?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 7>Q 4
 What was their main research question of James Watson and Francis Crick?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 4 - Variation and Inheritance>Exercise 7>Q 4
Why is it important for scientists to have a research question when conducting an investigation?