* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Matching On the lines provided, write the letter of the definition of
Survey
Document related concepts
Hybrid (biology) wikipedia , lookup
Genomic imprinting wikipedia , lookup
Polymorphism (biology) wikipedia , lookup
Genetically modified crops wikipedia , lookup
Pharmacogenomics wikipedia , lookup
Transgenerational epigenetic inheritance wikipedia , lookup
X-inactivation wikipedia , lookup
Behavioural genetics wikipedia , lookup
Designer baby wikipedia , lookup
History of genetic engineering wikipedia , lookup
Population genetics wikipedia , lookup
Genetic drift wikipedia , lookup
Medical genetics wikipedia , lookup
Microevolution wikipedia , lookup
Quantitative trait locus wikipedia , lookup
Transcript
Basic Genetics Review Sheet I-Matching term. 1. genetics 2. trait 3. hybrid 4. gene On the lines provided, write the letter of the definition of each 5. allele 6. gamete 7. probability 8. Punnett square 9. haploid 10.meiosis a. likelihood that something will happen b. process of reduction division c. specific characteristic d. produced by crossing parents with different alleles e. containing a single set of chromosomes f. reproductive cell g. factor that controls traits h. diagram showing possible gene combinations i. branch of biology that studies heredity j. form of a gene II- Define the following and show with an example (letters/pictures) 1-Dominant: 2-Recessive 3- Homozygous 4- Heterozygous 5- Crossover 6- Non disjunction 7- Incomplete dominance 8- Codominance 9- sex linked inheritance III- Fill in the blank or circle the correct word choice 1- According to the principle known as ________________________ genes that segregate independently do not influence each other’s inheritance. 2-________________results in the exchange of alleles and produces new combinations of alleles. 3- The separation of alleles is called segregation. meiosis. true-breeding. crossing-over. 4-Organisms that have identical alleles for a particular trait are heterozygous. diploid polygenic. homozygous. 5-An organism that has an allele for brown eyes and an allele for blue eyes is true-breeding. heterozygous. homologous. homozygous. 6-The genetic makeup of an organism is its genotype. genetics. meiosis. crossing-over. Draw a diagram crossover and describe the importance of it Solve the following genetics problems: Use the alleles as stated below. Tall (T) Short (t) Round seed (R) Wrinkled seed (r) Inflated pod (I) Wrinkled pod (i) Green Leaf (G) Yellow Leaf (g) 1. Cross a heterozygous long stem plant with a short stem plant. What is the resulting genotype ratio? What is the resulting phenotype ratio? Long stem (L) Short stem (l) 2. Cross two heterozygous round, heterozygous green leaf plants. What are the parent’s genotypes? How many of the offspring will be round and yellow? 3. A woman who is a carrier for hemophilia marries a hemophiliac man. (This is a sex-linked disorder) What will the phenotypes of their male children be? 4. Colors of wheat kernels range from white (WW) to dark red (RR) with various shades of pink (WR) in between. Cross two pink plants. What are the genotypes of the F1 offspring? 5. By what pattern of inheritance is the trait from question #4 controlled; meaning what type of dominance is exhibited? 6. A man Type O blood marries a woman with blood type AB. What are the genotypes of their future children? 7. On what types of plants did Mendel do his hereditary experiments? 8. What is a Punnett Square and why is it used? 9. Use the following information to explain Mendel’s Law of Independent Assortment. RrDd RD Meiosis D 13. Examine the following Punnett Square: T t TT Tt TT Tt Rd rD rd A. What must the genotype for the second parent be? B. What do the letters inside the boxes represent (be specific)? 14. Why is it that a male child is more likely to inherit a sex-linked disorder, such as colorblindness than is his sister? 15- In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk-shaped fruit (D) is dominant over sphere-shaped fruit (d).. If a squash plant that is white and disk-shaped fruit is crossed with a plant that is yellow, sphere-shaped fruit, what will the phenotypic and genotypic ratios be for: a. the F1 generation? Pedigree - USING SCIENCE SKILLS The pedigree shows the inheritance of free earlobes (F) and attached earlobes (f) in five generations of a family. Attached earlobes are caused by a recessive allele (f). Half-shaded symbols are NOT used in this pedigree to show carriers of the allele. Figure 14-2 1. Inferring Is individual 2 in Figure 14-2 homozygous or heterozygous for free earlobes? Explain. 2. Interpreting Graphics In Figure 14-2, how many children of individuals 4 and 5 have attached earlobes? 3. Inferring Can you be certain of the genotype of individual 5 in Figure 14-2? Explain. 4. Predicting Predict the genotype and phenotype of individual 14 in Figure 14-2. 5. Inferring In Figure 14-2, are any of the descendants of individuals 1 and 2 homozygous for free earlobes?