1.Go to the following website:http://learn.genetics.utah.edu/content/begin/traits/
2.Click on “What is Heredity?” Summarize what heredity is.
Heredity is the passing of traits from parent to child.
3.Click on “What is a Trait?” Summarize what a trait is in your own words.
Genes encode the instructions that define our traits. Traits are physical features that we inherit from our parents and ancestors.
4.Click on “What is a Chromosome?” Describe the structure of a chromosome.
DNA is tightly packed around proteins.
5.Click on “How Do Scientists Read Chromosomes?” Describe how karyotypes are used.
Scientists use the size, banding pattern, and centromere position.
6.Click on “Make A Karyotype.” Do this activity. Describe how you knew where to place each chromosome.
I knew where to place each chromosome based on the length and banding pattern.
7.How do scientists predict genetic disorders?
Scientists predict genetic disorders if there are too many or too few chromosomes.
8.What are telomeres and what is significant about them?
Telomeres are nucleotides sequences at the end of each chromatid. This protects the chromosomes from deterioration.
9.Go to the following website:
http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel1.htm
10.Summarize Mendel’s first and second laws.
First Law- The law of segregation states that each gamete separates from the allelic pair
Second Law- The law of independent assortment states that one allele is independent of the segregation.
11.What is a Punnett Square?
The Punnett Square is a diagram that allows us to determine specific genetic ratios.
12. What is the difference between a monohybrid and a dihybrid cross?
A dihybrid cross is a cross between parents that differ by 2 pairs of alleles but a monohybrid is an offspring of parents that are homozygous.
13. How does a Punnett Square compare/contrast with a pedigree?
A punnet square will show the possible outcomes of a trait that the offspring might have, while the pedigree follows and keeps track of a certain trait down the line of offspring.
14. What is pleiotrophy?
Pleiotrophy is when one gene affects two phenotypes
15. What is a lethal gene?
Lethal genes are genes that can kill the offspring.
16. What is epistasis?
Epistasis is interaction between two or more genes to control a single phenotype
17. What is a modifier gene?
Genes that have an effect on the expression of another gene
18. Describe the concepts of expression and of modifiers.
Certain traits will be expressed while others will affect the expression of other traits
19. What are multiple alleles?
A gene has more than one allele the dominant 2 are expressed the other 2 are not.
20. Describe the difference between codominance and incomplete dominance.
Incomplete – one allele is not completely dominant over the other
Codominance – both alleles in a gene expressed
21. Describe the difference between genotype and phenotype.
Genotype – set of genes organism carries
Phenotype – all observable characteristics on an organism
22. What is an X-linked trait?
The x-linked trait is a trait that is found on the X chromosome
23. What is the F1 Generation?
Generations that are resulting from the first parents.
24. What is the P1 Generation?
The P1 Generation are traits from first generation.
25. What is the F2 Generation?
The F2 Generation that results from breeding of F1 generation.
2.Click on “What is Heredity?” Summarize what heredity is.
Heredity is the passing of traits from parent to child.
3.Click on “What is a Trait?” Summarize what a trait is in your own words.
Genes encode the instructions that define our traits. Traits are physical features that we inherit from our parents and ancestors.
4.Click on “What is a Chromosome?” Describe the structure of a chromosome.
DNA is tightly packed around proteins.
5.Click on “How Do Scientists Read Chromosomes?” Describe how karyotypes are used.
Scientists use the size, banding pattern, and centromere position.
6.Click on “Make A Karyotype.” Do this activity. Describe how you knew where to place each chromosome.
I knew where to place each chromosome based on the length and banding pattern.
7.How do scientists predict genetic disorders?
Scientists predict genetic disorders if there are too many or too few chromosomes.
8.What are telomeres and what is significant about them?
Telomeres are nucleotides sequences at the end of each chromatid. This protects the chromosomes from deterioration.
9.Go to the following website:
http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel1.htm
10.Summarize Mendel’s first and second laws.
First Law- The law of segregation states that each gamete separates from the allelic pair
Second Law- The law of independent assortment states that one allele is independent of the segregation.
11.What is a Punnett Square?
The Punnett Square is a diagram that allows us to determine specific genetic ratios.
12. What is the difference between a monohybrid and a dihybrid cross?
A dihybrid cross is a cross between parents that differ by 2 pairs of alleles but a monohybrid is an offspring of parents that are homozygous.
13. How does a Punnett Square compare/contrast with a pedigree?
A punnet square will show the possible outcomes of a trait that the offspring might have, while the pedigree follows and keeps track of a certain trait down the line of offspring.
14. What is pleiotrophy?
Pleiotrophy is when one gene affects two phenotypes
15. What is a lethal gene?
Lethal genes are genes that can kill the offspring.
16. What is epistasis?
Epistasis is interaction between two or more genes to control a single phenotype
17. What is a modifier gene?
Genes that have an effect on the expression of another gene
18. Describe the concepts of expression and of modifiers.
Certain traits will be expressed while others will affect the expression of other traits
19. What are multiple alleles?
A gene has more than one allele the dominant 2 are expressed the other 2 are not.
20. Describe the difference between codominance and incomplete dominance.
Incomplete – one allele is not completely dominant over the other
Codominance – both alleles in a gene expressed
21. Describe the difference between genotype and phenotype.
Genotype – set of genes organism carries
Phenotype – all observable characteristics on an organism
22. What is an X-linked trait?
The x-linked trait is a trait that is found on the X chromosome
23. What is the F1 Generation?
Generations that are resulting from the first parents.
24. What is the P1 Generation?
The P1 Generation are traits from first generation.
25. What is the F2 Generation?
The F2 Generation that results from breeding of F1 generation.