It's Evolving
Select Select
Good Genes
Pun-IT
50 50
100
What is evolution?
Populations changing over time
100
In order for Natural Selection to occur, there must be differences between organisms we call this
Variation
100
What molecule contains the information for building protein?
DNA (Deoxyribose Nucleic Acid)
100
A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is controlled by a single gene with two alleles. The individuals with a red or green phenotype are homozygous for the red or green alleles and the individuals with a brown phenotype are heterozygous.
A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is controlled by a single gene with two alleles. The individuals with a red or green phenotype are homozygous for the red or green alleles and the individuals with a brown phenotype are heterozygous.
What is the genotype of a brown individual (Use the letter G, g= recessive, G=dominant)
The individual is heterozygous (Gg)
100
For ________________trait to be expressed the individual needs two copies of the allele. While a ________________ trait only requires the individual to have one copy of the allele.
Dominant, Recessive
For Recessive trait to be expressed the individual needs two copies of the allele. While a Dominant trait only requires the individual to have one copy of the allele.
200
When two unrelated organisms evolve different characteristics despite sharing an ancestor, is it convergent evolution, divergent evolution, or artificial selection?
What is Divergent Evolution
200
What is the source of all variation in organisms?
Mutations
200
How does DNA determine traits
DNA is translated into RNA which codes for protein. Protein will determine traits.
200
A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is controlled by a single gene with two alleles. The individuals with a red or green phenotype are homozygous for the red or green alleles and the individuals with a brown phenotype are heterozygous.
Create a punnette Square for two brown individuals
G g
G [ | ]
g [ | ]
or
g G
g [ | ]
G [ | ]
200
A ________________has two copies of the same allele. While a ________________ has two different alleles.
Heterozygous, Homozygous
A Homozygous has two copies of the same allele. While a Heterozygous has two different alleles.
300
When two unrelated organisms evolve similar characteristics because they evolved in the same environment, is it convergent evolution, divergent evolution, or artificial selection?
What is convergent evolution
300
What is Natural Selection?
a mechanism of evolution that occurs when organisms with traits that are better suited to their environment are more likely to survive and reproduce
300
Based on the karyotype, how many chromosomes are present in the gametes of a cat?
19 ( Body cells or autosomal cells will have two copies of each chromosome or 38)
300
Huntington’s disease is an inherited condition in which the neurons in the brain break down over time. An individual who inherits one allele for Huntington’s disease will most likely express the symptoms. A man who is heterozygous for the Huntington’s disease allele has a child with a woman with no family history of Huntington’s disease.
Which of the following best explains the percent chance that the child will inherit an allele for Huntington’s disease?
There is a 50% chance that the child will inherit the Huntington’s disease allele, because the father has one copy of the allele.
300
A ________________describes which alleles an invidual has while ___________________ describes what the individual looks like
Geneotype, Pheotype
A genotype describes which alleles an invidual has while phenotype describes what the individual looks like
400
When humans select for specific traits, such as breeding dogs to herd cattle, is it convergent evolution, divergent evolution, or artificial selection?
What is Artificial Selection
400
Describe what is happening in this population
Some mice have a mutation that gives them black fur, those blend into their environment, and as a result, are more likely to survive and reproduce. This process is called evolution by natural selection.
400
C
400
The pedigree shows drawrfism in horses, which is an autosomal dominant trait. Based on the pedigree, which of the following is an accurate claim about the genotype of Individual 5 generation II?
Based on the pedigree, which of the following is an accurate claim about the genotype of Individual 2?
400
_____________________ cause variation between individuals and ___________________ acts on that variation, leading to differences in survival
Mutation, Natural Selection
Mutation cause variation between individuals and Natural Selection acts on that variation, leading to differences in survivalWhat is variation
500
What evidence is there of evolution?
Silimarity between traits and DNA, fossil evidence.
500
What is the survival of the fit?
Those with traits that are beneficial are more likely to survive and reproduce.
500
Which individuals are Heteozygotes
Alice, Irene and Alix
500
The pedigree shows drawrfism in horses, which is an autosomal dominant trait. If Individual 6 in generation III mates with a homozygous recessive horse, predict the offspring?
All of their offspring will be homozygous non-dwarf horses.
500
Natural selection acts on _________, making an organism more likely to survive and reproduce, evolution acts on __________, changing it over time
Word Bank: Individual, Population
Natural selection acts on the individual, making an organism more likely to survive and reproduce, evolution acts on Population, changing it over time