Genetics and Heredity Quiz

What did Gregor Mendel primarily study in pea plants?

• The resistance of peas to diseases

• The effects of climate on growth

• The genetic traits and their inheritance

• The nutritional value of peas

Why is polydactyly considered a dominant trait but still rare?

• It is a newly evolved trait

• The allele for more than five digits is uncommon

• It is caused by environmental factors

• It is not actually a dominant trait

Which genes are responsible for the development of digits in tetrapods?

• Chromosome 21 and 22

• Mendelian genes

• Gene X and Gene Y

• Hox A13 and Hox D13

What is the significance of Hox genes in evolution?

• They control the immune system

• They are responsible for photosynthesis

• They regulate the development of body structures

• They determine the color of flowers

What is incomplete dominance?

• A trait that is not expressed at all

• A dominant trait that completely masks the recessive one

• A recessive trait that becomes dominant

• A dominant allele that does not fully dominate the trait

What is an example of co-dominance in humans?

• Eye color

• Blood type AB

• Skin color

• Height

What is an example of incomplete dominance in animals?

• A green and yellow parrot

• A red and white flower

• A blue Andalusian chicken

• A black and white cat

What is the chicken egg paradox?

• The mystery of why chickens lay eggs

• The question of which came first, the chicken or the egg

• The nutritional content of chicken eggs

• The evolution of chickens from dinosaurs

How long ago did hard-shelled eggs evolve?

• 100 million years ago

• 200 million years ago

• 400 million years ago

• 300 million years ago

What is a critique of traditional taxonomy mentioned in the video?

• It is based on modern genetic research

• It is universally accepted without criticism

• It does not account for extinct organisms

• It is too simple and easy to understand