Genetics & Heredity
What is a gene?
A gene is a portion of a chromosome that is made up of DNA
Where is DNA located?
Nucleus of the cell
What is the human body made of?
Organs and tissues
What are 3 parts of the nervous system?
Brain, spinal cord, network of nerves
Who makes louder sounds, male of female frog?
Male
What is genetics?
Genetics is the study of how genes interact with one another and heredity.
What is the four nitrogenous bases?
The four bases are Adenine,Thymine,Cytosine and Guanine
What do you call it toward the front of the body?
Anterior
What's the difference between internal and external stimuli?
Internal is inside your body (like your digestion, hormones) and external is outside your body, like things you feel with your 5 senses
Why do female frogs have larger bodies than males?
They need room to carry the eggs
What is heredity?
Heredity is how traits are passed down from parents to offspring.
When do we need new DNA?
We need new DNA for the daughter cells when new cells are made
What is meant by Cranial Region?
The area of your body that includes the bones in your head that protect your brain and the brain
What are myelin sheaths?
They cover the axon so messages can travel easily along the neuron pathways
What does the frog's small intestine do?
Gets nutrients from the food
Explain what homozygous recessive mean?
Homozygous recessive is 2 lowercase when both alleles are recessive alleles
What helps replicate the DNA?
Different enzymes
What is the cephalic region of your body?
It includes everything in your head that's not in the Cranial Region (face, nose, mouth, eyes, ears, chin)
What are the types of neurons?
Sensory neurons, interneurons and motor neurons.
What do frog lungs do?
Bring oxygen into the body
Explain what homozygous dominant mean?
Homozygous dominant is 2 uppercase when both allel
What does DNA stand for?
Deoxyribonucleic Acid
What organs are included in the abdominal region?
The organs of the digestive system
How does the nervous system work?
Neurons respond to a stimulus to maintain homeostasis
What does the cloaca do in frogs?
It is where waste exits the frog