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Q1. What was the phenotypic ratio for offspring resulting from this testcross? Based on this phenotypic ratio, find out whether the F1 wild-type female male was double homozygous or double heterozygous for the eye colour and body colour alleles. Explain the answer. If your answer was doubling homozygous, depict an expected phenotypic ratio for the offspring produced from a testcross with a double heterozygous fly. If the answer was doubling heterozygous, illustrate an expected phenotypic ratio for the offspring produced from a testcross with a homozygous fly.
Q2. What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration?
If the fox were to feed only on insect-eating birds, how many square meters of plant material would be necessary.
What offspring phenotypes would you expect from mating between a 15-cm and 30-cm pig. How many pairs of genes are regulating the tail length character? (Hint: count the phentotypic classes, or find out the sum of the ratios of the classes)
If amino acid sequences might be useful in determining how closely related dissimilar species are but may not be very useful for identifying a particular species, suggest two reasons why.
About 5 percent of individuals with Down syndrome have a chromosomal translocation in which a third copy of chromosome 21 is attached to chromosome 14. If this translocation occurred in a parent's gonad, how can it lead to Down syndrome in a child.
Plan a scientific experiment to find out the effect of this environmental factor on the rate of photosynthesis or cellular respiration in your chosen organism (reviews the scientific method, remember hypothesis, control so on.
Atherosclerosis is the progressive disease of blood vessels that is responsible for millions of death each year. Explain disease process, noting the involvement of specific cell/tissue types and molecules.
The phenotypic variances were 9.4 cm2 for the inbred strain and 26.4 cm2 for the randomly pollinated population. Guess the broad sense heritability of ear length in these populations. What are the usual frequencies of the gametes from a plant with th..
What type of electrode would they need to use (express material and design)? Provide a simplified schematic (circuit model of the electrode) described in the notes. Also discuss at least two benefits of an exoskeleton as well as how arthropod grows ..
Explain the main types of extracellular signaling.
Summarize the climate changes that have occurred from the past to the present. The masses of the sedimentary rock, the metamorphic rock, and the igneous rock are same.
Relationship between reproductive rate and pattern of survival. however where would you have to place a pressure measuring device to get the true blood pressure.
Both endocrine and nervous system are major regulating systems of the body; however, the nervous system has been compared to any post mail delivery system and the endocrine system to the pony express. In brief explain this comparison.
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