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What are the genotypes (for both belly color & gender) for the two individuals involved in this cross.
A female heterozygous drosophila melanogaster with the x linked genes of singed bristles (sn), crossveinlesss wings (cv), and vermillion eye colour.
What are three examples of abnormalities in genes and chromosomes.
According to Thomas Szasz, the idea of mental illness, including schizophrenia, is a myth. Szasz believes that schizophrenia should be properly regarded as problems of living in a society that mistr
In fruit flies, vestigial wings (v) are recessive to normal wings (V). In a breeding study, 6,000 flies homozygous for vestigial wings mate at random with 4,000 flies homozygous for the normal allel
Complete all three parts and answer all questions. Remember to turn in Punnett Square for Part 2.
In Drosophila, a cross was made between females expressing the three X-linked recessive traits: scute (sc) bristles, sable (s) body and vermillion (v) eyes, and wild-type (+) males.
An organism of genotype AaBb is testcrossed. 1000 offspring are counted and the numbers in the four genotypic categories are as follows.
A breeder crosses white dogs with black dogs. F1 generation were all black dogs. The progeny were crossed to produce a F2 generation of; 71 white dogs:249 blakc dogs.
Eukayotic cells can divide by mitosis or meiosis. In humans, mitosis produces new cells for growth and repair; meiosis produes sex cells (gametes) called sperm and eggs.
Explain the process of crossing over or recombination. Include in your answer chiasma and synatonemal complex.
Bob and Sally recently married. Upon deciding to plan a family, both Sally and Bob find out that they are both heterozygous for cystic fibrosis, but neither of them has symptons of the disorder.
Biotechnology allow us to use living organisms or their processes for human needs or purposes. Currently this topic includes such general examples as cloning, stem cells (adult, umbilical cord, and
In Web searching (on Google, or Hotbot, or some such search engine) on the topic "Nature vs. Nurture.? find an interesting discussion or article related to it.
Suppose a gene in a chromosome is of type A or type B. Assume that the probability that a gene of type A will mutate to type B in one generation is 10^-4 and that a gene of type B will mutate to typ
Mendel is the father of modern genetics, but there are some genetic characteristics that cannot be explained by simple Mendelian genetics.
Using a Punnett Square, show how you would determine the probability that couple who were both carriers of an automsomal recessive disorder would have a child that would exihibit that disorder. Be s
A cattle rancher discovers that one of his bulls has a great deal of muscle mass but little fat, and wishes to create a pure-breeding stock with that trait. When he breeds the bull with wild-type co
In reference to biotechnology, what are some ethical or moral implications when we begin to shape or reshape human nature to our own design (i.e., choosing gender, eye color).
Unattached earlobes are a dominant trait. If A denotes the allele for unattached earlobes, and a denotes the allele for attached earlobes.
Frame-shift mutations occur when a nucleotide is accidentally omitted or added to DNA. Would a frame-shift mutation be more harmful if it occurred at the start of a gene or near the end of the gene?
Migration occurs at a constant rate between two populations of field mice. In one population, 65% of the population are white, in the other population, only 15% are white. What would you expect to h
Given this sequence: ACG TGG GCA TGA ACG TGG
In 1981, a stray cat with unusual curled-back ears was adopted by a family in Lakewood, California. Hundreds of descendants of this cat have since been born.
Diversity is very important in ensuring a sufficient immune response to accommodate the vast number of immune response. This solution describes in detail, with the aid of a diagram, how B cells gene