DNA Structure
Punnett Squares
Mutations
Meiosis
My questions
100
What shape is DNA?
A double helix.
100
What is a Punnett Square used for?
To predict the probability of offspring inheriting specific traits.
100
What is a mutation?
A change in the DNA sequence.
100
What is meiosis?
A type of cell division that produces gametes (sperm and egg cells).
100
M&M or Eminem?
200
What are the building blocks of DNA?
Nucleotides
200
What do the letters in a Punnett Square represent?
Alleles from the parents.
200
What can cause mutations?
Errors during DNA replication or exposure to environmental factors.
200
How many divisions occur in meiosis?
Two divisions (Meiosis I and Meiosis II).
200
Why did the biologist go to the concert?
Because they wanted to see some cell-o performances! 🎶🔬
300
What are the four nitrogenous bases in DNA?
Adenine, thymine, cytosine, and guanine.
300
What does a capital letter in a Punnett Square indicate?
A dominant allele.
300
What is a point mutation?
A change in a single nucleotide in the DNA sequence.
300
How many daughter cells are produced in meiosis?
Four daughter cells.
300
Why was the cell phone wearing glasses?
Because it lost its contacts! 📱👓
400
What bonds hold the two strands of DNA together?
Hydrogen bonds.
400
What is the probability of a recessive trait appearing if both parents are heterozygous (Tt)?
25%
400
What is a frameshift mutation?
An insertion or deletion of nucleotides that shifts the reading frame.
400
Are the daughter cells genetically identical or different?
Genetically different.
400
What did the biologist wear to impress their date?
Designer genes! 👖🔬
500
Where is DNA found in a cell?
In the nucleus.
500
How are the parents' alleles placed in a Punnett Square?
One parent's alleles are placed on the top, and the other parent's alleles on the side.
500
Are all mutations harmful?
No, some mutations are neutral or beneficial.
500
Why is meiosis important for sexual reproduction?
It ensures genetic diversity and reduces the chromosome number by half.
500
Why do biologists look forward to casual Fridays?
Because they're all about "jeans" day! 👖🧬