Explain why these are true or false.
A single skin cell in a human female has: (select all)
a) DNA from her mother and father (true)
b) different DNA content than her liver cells (false)
c) different protein content than her liver cells (true)
d) different DNA content than her egg cells (true)
A is correct because skin cell are diploid which get one copy from her mother and one from her father.
B is false because DNA content of every cell is same , it is differential expression of gene which make cell function differ.
C is true because function of both cell are different and so both express different proteins but total DNA content is same.
D is correct answer because SK n cell are somatic cell and egg is derived from germ cells .
Explain why these are true or false. A single skin cell in a human female has:...
A human cell with a Barr body always comes from a female. True or False True False
1.All cells in a human body undergo the process of meiosis. True False 2. Most cells in the human body contain 46 chromosomes. True False 3. The chances that any two siblings will be genetically identical is astronomically small. True False 4. Each time protein synthesis occurs; all of the DNA of a cell is copied. True False RNA creation occurs in the nucleus of a cell; protein synthesis occurs on the ribosomes. True False 6. Tay-Sachs syndrome is a...
the statement is true or false and then explain why. Many human genes so closely resemble their homologs in yeast that the protein-coding portion of the human gene will substitute for the function of the yeast gene in yeast cells.
Cloning Human Embryonic Stem Cells Cloning is now possible by inserting a skin cell from a baby into an unfertilized human egg that has had its own DNA removed. This produces a blastocyte (an undifferentiated embry onic cell), which includes stem cells identical to the baby's. With this technique it is possible to make genetically identical embryonic stem cells from any cell in the human body. This would remove the need to harvest these cells from existing embryos. Theoretically these...
Cloning is now possible by inserting a skin cell from a baby into an unfertilized human egg that has had its own DNA removed. This produces a blastocyte (an undifferentiated embry-onic cell), which includes stem cells identical to the baby’s. With this technique it is possible to make genetically identical embryonic stem cells from any cell in the human body. This would remove the need to harvest these cells from existing embryos. Theoretically these stem cells could be grown into...
the statement is true or false and then explain why. The portion of the human genome subjected to purifying selection corresponds to the protein-coding sequences.
true or false, please give explaination TRUE/FALSE. Explain why the answer is true or false. 3) True or False: Assume that a species has a diploid chromosome number of 24. The term applied to an individual with 25 chromosomes would be triploid. 4) True or False: Inversions suppress crossing over by providing a chemical imbalance because of breakpoints within certain genes. e or False: Individuals with familial Down syndrome are trisomic and have 47 chromosomes. 6) True or False: An...
In humans, there are about 200 different types of cells. Why are your liver cells different from skin cells, or neurons, or muscle cells? During development, each cell accumulates different mutations changing their DNA They produce the same proteins but some of those proteins are denatured in each cell They have different DNA and thus, each cell produces different proteins They produce the same kind of proteins but not all proteins are active in each cell They have the same...
A human cell has an abnormal sex chromosome constitution of XXY. Where could the non-disjunction event have occurred? Select one: a. Meiosis I of the father b. Meiosis Il of the mother c. Meiosis I of the mother d. Meiosis Il of the father e. More than one of these choices could result in an XXY cell Consider the following western blot for tubulin. Each lane represents a different cell line culture. What can be concluded from this blot? HepG2...
There are more cells than organelles in the human body. Briefly explain why it is false or reword it to make it true.