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Q1. Archeologist discovers skeletal remains of humanlike animals in Ethiopia. Examination of bones suggests that the remains represent four types of individuals. Two of skeletons have bone densities 30 percent less than those of the other two skeletons. The skeletons with the lower bone mass also have broader front pelvic bones. Within the two groups define by the bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but larger bones have only a thin line where the epiphyseal plates should be. Give the age group and gender of the individuals in this find.
Q2. In foxes, two alleles of a single gene, P and p, may result in lethality (PP), platinum coat (Pp), or silver coat (pp). What ratio is obtained while platinum foxes are interbred?
Is P allele behaving dominantly or recessively in causing
(a) lethality; (b) platinum coat colour?
Suppose a gene A is on the X chromosome, and genes B, C, and D areon three different autosomes. Thus, A- signifies the dominantphenotype in the male or female, What is the probability of obtaining an "a" male inthe F1 progeny
q1. it is experimentally determined that the newly isolated bacterium produces about 2200 proteins when grown on
Approximately 10% of the body of a free-living flatworm is occupied by reproductive tissue. Why is the value you obtain for the fluke so much different?
Describe how a typical or C3 plant responds to hot, dry weather. How does this response affect the plant's production of sugars via photosynthesis ?
Discuss the gradual appearance of significant ECOLOGICAL synapomorphic traits (advance shared ecologically functional properties among taxa) that have evolved during the colonization of land by plants, from simpler.
Describe two important factors that contribute to the buildup of CO2 in the atmosphere and contribute to global warming. Discuss possible ways to control these factors.
calculate a chi-square test statistic to see whether or not the observed progeny phenotypes are significantly different from the expected progeny phenotypes
Describe 3 similarities in the process of ATP synthesis during the light reactions of photosynthesis and ATP synthesis in aerobic respiration.
A physician performing a heart transplant mistakenly connects inferior and superior vena cava to left atrium and the pulmonary vein to the right atrium.
define how this cell would be activated the cellular and molecular interaction(s), and the various steps and factors leading to an appropriate immune response to clear the toxin.
The characteristic (trait) could be something like coloration pattern, length of the limbs, size of the teeth or beak, or any measurable trait that is inherited.
Which of these might cause a proto-oncogene to become an oncogene? a. exposure of the cell to radiation b. exposure of the cell to certain chemicals c. viral infection of the cell d. exposure of the cell to pollutants e. all of these are correct.
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