10 Science Genetics Diagnostic

Which sentence is FALSE?

• All organisms have 23 pairs of DNA

• Chromosomes are made of genes.

• DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine. 

• DNA is the recipe for life.

What are Genes?

• Genes are where information about the characteristics of a living organism are found. 

• The pants you put on when you’re going out.

• The organs that filter blood.

• The chemicals that control your mood.

What is the basic unit of heredity?

• Chromosome

• DNA

• Gene

• Allele

In a biology class, Ruby is learning about how traits are passed from parents to offspring. She discovers that a specific structure contains the genetic information responsible for these traits. Which structure is it?

• Ribosome

• Chromosome

• Nucleus

• Golgi Apparatus

Imagine Levi, Tristan, and William are in a science lab when they discover a permanent change in the DNA sequence. What do they call this change?

• Translation

• Transcription

• Mutation

• Replication

In a Punnett square, what do the letters represent?

• Genes

• Chromosomes

• Phenotypes

• Mutations

If an organism has two different alleles for a particular trait, it is called:

• Homozygous

• Heterozygous

• Recessive

• Dominant

How are sex-linked traits different from autosomal traits?

• Sex-linked traits are inherited only by males.

• Autosomal traits are inherited only by females.

• Sex-linked traits are located on the X chromosome.

• Autosomal traits are located on the Y chromosome.

What does gene technology involve?

• Studying the history of genetics

• Analyzing genetic variations in populations

• Understanding genetic disorders

• Manipulating genes for practical purposes

What makes heritable traits different from non-heritable ones?