Hi, I am sending these problems for Andrea's attention please. If you are online Andrea, could you please contact me via email to let me know if you are able to view my problems aor not?ThanksDrag the labels from the left to their correct locations in the concept map on the right.
Complete the diagram to show the life cycle of a typical animal.
Follow these steps:
Labels can be used once, more than once, or not at all.
Before beginning the tutorial, watch the Meiosis animation. You can review relevant parts of the animation at any point in the tutorial.
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Watch the Meiosis animation to learn about each stage in the process. You can review relevant parts of the animation at any point in the tutorial.
Before beginning the tutorial, watch the Meiosis animation. Pay particular attention to the processes that ensure that each daughter cell receives one full set of chromosomes, while at the same time mixing chromosomes of maternal and paternal origin. You can review relevant parts of the animation at any point in the tutorial.
Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring always resemble their parents, they are genetically different from both of their parents and from one another. The degree of variation may be tremendous.
The following processes are associated with meiosis and the sexual life cycle:
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working with a concept map here, and I am having difficulty posting the drawing, so I am just going to explain the best way I can.
I have genes, locus, DNA, genome, gametes, traits, chromatin, and chromosomes.
I am supposed to drag the labels from the left side to their correct loaction in the concept map on the right of my screen.
The right side of my screen is labeled a - h with some up and down arrows starting at a.
It says : 1. what encode heritable characterics are called
2. are made of
3.when complexed with protein is called
4. each have
6. are organized on
7. that specifies its position on
8.in its condensed form is called
9. together constitie the cell's nuclear
10. are passed on to the next generation in
11. are located in
drag labels to their appropriate targets to correctly identify the various chromosomes structures. The labels can be used more than once.
the labels are: centromere, non-homologous chromosomes, homologous chromosomes, sister chromatids, nonsister chromatids
The slots on the right that needs to be filled are: chromosome replication prior to mitosis, chromosome replication prior to meiosis
that was the main one that I could not understand.
This one is animal life cycles, and the list on my left has sperm, egg, zygote,meiosis, mitosis, n, and 2n.
The labes once, more than once, or not at all.
On the right of my screen I have the slots lettered a - p and maternal parent and paternal side by side with two blue arrows pointing downward. Further down towards the middle I have female multicellular. (it is basically the same concept map)
What gametes are produced by these parents?
In pea plant, the tall condition (T) is dominant over the dwarf condition(t). for each of the following crosses, give the expected genotypic and phenotypic ratio in the offspring.
cross Genotype ratio Phenotypic ratio
TT x tt
Tt x tt
Tt x Tt
4-6. In pea plants, the tall condition (T) is dominant over the dwarf condition (t). For each of the following crosses, give the expected genotypic and phenotypic ratio in the offspring.
7-8. Assume that white color is dominant over yellow color in squash. If pollen from the anthers of a heterozygous white-fruited plant is placed on the pistil of a yellow-fruited plant, show using ratios the genotypes and phenotypes you would expects the seeds from this cross to produce.
9-10. In watermelons, the genes for green color and for short shape are dominant over theit alleles for striped color and for long shape. Suppose a plant with long striped fruit is crossed with a plant heterozygous for both of these characters. What phenotype would this cross produce and in what ratios?
11-14. In hogs, a gene that produces a white belt around the animals body is dominant over its allele for a uniformly colored body. Another gene produces fusion of the two hoofs on each foot. This gene is dominant over its allele, which produces normal hoofs.Suppose a uniformly colored hog homozygous for fused hoofs is mated with a normal-footed hog homozygous for the belted character. What would be the phenotype of the F1?_____________________________________If the F1 individuals are allowed to breed freely among themselves, what phenotypic ratio would you predict for the F2?
15-16. In the fruit fly, vestigial (tiny) wings and hairy body are produced by recessive genes. The normal alleles, long wings and hairless body, are dominant. If a vestigial-winged male heterozygous for hairless is crossed with a hairy female heterozygous for long wings, what will be the phenotypic ratio of the F1?
17-19. A man and woman of normal phenotype have a son with Duchenne muscular dystrophy, a sex-linked recessive disorder. They are planning to have another child and ask you for genetic counseling.What is the likelihood that another child will have this disease if it is a boy?________ What is the likelihood that another child will have this disease if it is a girl?________ What is the overall chance of any child in their family getting the disease?_________
(+2) 20-21. If the litter resulting from the mating of 2 short-tailed cats contains 3 kittens without tails, 3 with long tails, and 6 with short tails:What would be the simplest way of explaining the inheritance of tail length in these cats?What are the genotypes of the kittens without tails:____________ with long tails: ____________ with short tails: ____________
22. The location of a gene on a chromosome is termed its a. allele b. site c. phenotype d. locus
23. The genotype HH is a. homozygous dominant b. homozygous recessive c. heterozygous
24. The genotype Hh is a. homozygous dominant b. homozygous recessive c. heterozygous
25. The genotype hh is a. homozygous dominant b. homozygous recessive c. heterozygous
26. The outward appearance of two genes for the same trait is the a. genotype b. phenotype
27. A lower case letter in a genetics problem indicates that the allele is a. recessive b. dominant
28. Which is true? a. Genes are different forms of alleles. b. Alleles are different forms of genes.
29. Homologous chromosome contain alleles for ________ traits. a. the same b. different