Vocab
Identify the difference between homozygous and heterozygous, include the number of proteins.
Homozygous means two copies of the same allele (they have one protein.)
Heterozygous means two copies of different alleles. At the molecular level, they would have two types of proteins in their cells.
How many copies of genes does each organism have and where do they come from?
2 and mom and dad
What is a Punnett square?
Used to predict the probability of one specific trait in offspring (kids)
List the genotypes, if curly hair is recessive.
AA - straight
Aa - wavy or straight
aa - curly
What bus line did we take for the Exploratorium?
9 or 9R
How are structure and function related?
The way something is shaped determines how it works.
How many proteins are present in a homozygous and heterozygous genotype?
1 and 2 respectively.
If the genotypic ratio of offspring are 25% homozygous dominant, 50% heterozygous, and 25% homozygous recessive, what are the genotypes of the parents?
List the phenotypes: Purple flowers are dominant over white flowers.
PP - purple
Pp - purple
pp - white
What teams does Mr. Flores always root for?
Warriors, Giants, and 49ers!
What do ribosomes do?
The part of the cell that ACTUALLY builds proteins.
What is the relationship between ribosomes, genes, and proteins?
Genest are instructions for proteins but ribosomes ACTUALLY build the proteins.
Cross a homozygous dominant and heterozygous parent.
Pink manes are recessive. If two horses with pink manes breed together, will any of their offspring have black or purple manes? Explain.
No they will not because there is no dominant allele present in either parent's genotype.
How many TK-8 classrooms are in Mission Prep?
19 - 1 TK and 2 for all other grades (K-8)
Identify the main difference between a feature and a trait.
They both represent characteristics however, the main difference is that a feature is for an entire species and a trait is representative of an individual.
How is variation of traits determined?
Variation of traits is determined by different function/shape of proteins and how it interacts with other proteins which can result in different traits.
What are the chance of offspring being homozygous recessive if both parents are heterozygous?
1/4 = 25%
In dogs, short hair (H) is dominant over long hair (h). Complete the Punnett Square to show the possible traits offspring have of a heterozygous mom and a heterozygous dad.
Show me the Punnett square
Where did Mr. Tapia go to college for his bachelor's and and master's?
University of California!
What four amino acids (you can say the letters) make up the DNA double helix?
A, C, T, G
adenine, guanine, cytosine, thymine
Through sexual reproduction, each offspring can inherit a different combination of alleles. Therefore, siblings can have different traits from each other and even from their parents.
Identify the phenotypic and genotypic ratio of offspring, if a heterozygous parent and homozygous recessive parent cross. Blue eyes are recessive.
Genotypic Ratio: AA - 0%; Aa - 50%; aa - 50%
Phenotypic Ratio: Brown eyes - 25%: Blue eyes - 50%
Sharks inherit hunting preference from their genes. Hunting alone (A) is dominant to hunting in small groups (a). Complete the Punnett Square to show the combinations a homozygous dominant mom and homozygous recessive dad could create. Include the phenotypic and genotypic ratios.
Depends on your answers ...
What does Ms. Gusau always have in her hand?
COFFEEEEEEE