Science Kids: All About Genetics

The video tutorial introduces genetics, explaining how traits are inherited from parents to offspring. It covers Gregor Mendel's pioneering experiments with pea plants, which led to the discovery of dominant and recessive traits. The tutorial further explains the role of genes, DNA, and chromosomes in heredity, and how genetic inheritance results in diverse traits among siblings. The concept of alleles and their influence on traits like tongue rolling and eye color is also discussed.

What is the study of how traits are passed from one generation to the next called?

• Biology

• Physics

• Genetics

• Chemistry

Which type of plants did Gregor Mendel use for his genetic experiments?

• Tomato plants

• Pea plants

• Ferns

• None of the above

What is the basic unit of heredity that carries information about traits?

• Chemicals

• None of the above

• Plasma

• Genes

Approximately how many genes are found in each human cell?

• Fewer than 2,000

• About 5,000

• More than 50,000

• About 20,000

What is the shape of a DNA molecule?

• Double helix

• Cube

• Triangle

• Circle

Where is DNA primarily stored within a cell?

• In the nucleus

• In the brain

• None of the above

• In white blood cells

What are chromosomes primarily made of?

• Magnesium

• DNA

• Blood cells

• Calcium

How many pairs of chromosomes are found in each human cell?

• 52

• 23

• 10

• 100

What do we call the different forms of the same gene?

• Alleles

• Nucleus

• None of the above

• Protons

Which type of gene is expressed even when paired with a different allele?

• Passive

• Tough

• Offensive

• Dominant