Genetics
Evolution and Ecology
Human Anatomy
Miscellaneous Biology
Bio Riddles
100
A change in the DNA sequence, which can lead to new traits or diseases, is known by this term.
What is a mutation?
100
This concept explains why two species competing for identical resources cannot coexist indefinitely.
What is the competitive exclusion principle?
100
This structure in the brain regulates body temperature, hunger, and circadian rhythms.
What is the hypothalamus?
100
The scientific study of fungi is known by this word.
What is mycology?
100
I replicate with a twist, I’m not alive, but I exist. I'm not a cell but I can infect — what am I?
What is a virus?
200
This term describes when one gene influences multiple traits.
What is pleiotropy?
200
The scientist who co-discovered the theory of natural selection alongside Darwin.
Who is Alfred Russel Wallace?
200
These cells in the pancreas regulate blood sugar by producing insulin.
What are beta cells?
200
This theory, proposed by Lynn Margulis, suggests that eukaryotic cells evolved from prokaryotic cells living in symbiotic relationships.
What is the endosymbiotic theory?
200
I’m born in bone and swim in red, but fight infection where others dread.
What is a white blood cell?
300
This is the term for a cross between an individual with a dominant phenotype and a homozygous recessive to determine genotype.
What is a test cross?
300
The name of the event about 541 million years ago that saw a massive increase in the diversity of life.
What is the Cambrian Explosion?
300
These tiny structures in the inner ear help detect angular acceleration and maintain balance.
What are the semicircular canals?
300
This enzyme found in saliva begins the breakdown of starches in the mouth.
What is amylase?
300
: I am a tiny organelle, but a mighty recycler. I break down waste and cellular debris, a miniature incinerator. What am I?
What is a lysosome?
400
- In bacterial genetics, this process involves the direct transfer of genetic material from one bacterium to another through a pilus.
What is conjugation?
400
- This specific type of mimicry involves a harmless species evolving to imitate the warning signals of a harmful species directed at a common predator.
What is Batesian mimicry?
400
These specialized cells of the nervous system are responsible for producing myelin in the central nervous system.
What are oligodendrocytes?
400
This specific type of cell death is a highly regulated and programmed process, essential for development and tissue homeostasis, unlike necrosis.
What is apoptosis?
400
This class of plant hormones is primarily responsible for cell elongation and apical dominance.
What are auxins?
500
This chromosomal disorder is identified in the image.
What is Down syndrome?
500
This type of mimicry is shown, where one harmful species resembles another.
What is Müllerian mimicry?
500
same question
Broca's area
500
This specific type of white blood cell is primarily responsible for mounting a rapid, non-specific immune response against pathogens, often the first to arrive at a site of infection.
What is a neutrophil?
500
I travel far, across cell lines, to pass a message in protein signs. Hormones hear me, nerves do too — what messenger am I, with signals true?
What is a neurotransmitter?