What is the most likely cause of the baby's physical characteristics? (baby has trisomy 21) Non-dysjunction...
What is the most likely cause of the baby's physical characteristics? (baby has trisomy 21)
Non-dysjunction during meisosis I in the maternal egg cells.
Non-dysjunction during meisosis II in the maternal egg cells.
Non-dysjunction of the zygote sometime during embryogenesis.
An inherited translocation involving chromosome 21 from the mother.
Homework Answers
The correct answer is- An inherited translocation involving chromosome 21 from the mother.
Down syndrome is also called trisomy 21 is a genetic disorder which leads to birth defects in infants such as learning problem, low IQ and defect in facial features. Considering when a normal childbirth a sperm with 23 chromosomes fertilizes an egg with 23 chromosomes making a set of 46 chromosomes in the child, thus a child born has genes half from father and a half from mother. Sometimes an egg or sperm might keep both the copies of chromosome 21 thus giving rise to a child with 3 copies of 21 chromosomes, therefore called trisomy 21. There are cases wherein the extra 21 chromosome might get attached to another chromosome in the egg or sperm causing translocation trisomy 21, only conditions wherein this disease in inherited from any of the parent.
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What is the most likely cause of the baby's physical
characteristics? (baby has trisomy 21)
Non-dysjunction...
You are presented with a patient, named Gerry, who has Down syndrome (trisomy 21). You determine...
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You are presented with a patient, named Gerry, who has Down syndrome (trisomy 21). You determine the nondisjunction event occurred in his mother, named Mary, during meiosis I. The TPTE gene is on chromosome 21. Mary has two different alleles of the TPTE gene (ex. T and t). Do Gerry's maternally-inherited chromosome 21s have the same or different alleles of the TPTE gene? Do not worry about recombination in this question. Same alleles Different alleles Not enough information to determine...
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(cach question: 1 point) 1) If you see a red leaf, what color(s) of light in the visible light spectrum is/are being reflected? A) red B) all colors except red C) all colors D) no colors Answer: 2) permit CO2 to enter the leaf and O2 to escape. A) Mesophyll cells B) Thylakoids C) Stomata D) Chloroplasts Answer: 3) Chlorophyll is found in which part of the plant cell? A) stroma B) cytoplasm C) thylakoid D) plasma membrane Answer: 4)...
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(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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