Homework Answers
TRUE
Barr body is discovered by Murray Barr. It is an inactive X chromosome. In humans, females have 2 X-chromosomes and males have a single X-chromosome. So in human female one of the two X chromosomes is inactivated and it can be observed as darkly stained spot due to heterochromatinization. Since human male have a single X-chromosome and a Y-chromosome, there is no need of X-chromosome inactivation in males. Barr bodies are thus required to regulate and balance the amount of transcribed X-linked gene products in males and females.
Add Answer to:
A human cell with a Barr body always comes from a female. True or False True...
Explain why these are true or false. A single skin cell in a human female has:...
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 female sex cell has six Barr bodies. How many X chromosomes are there in this...
A female sex cell has six Barr bodies. How many X chromosomes are there in this cell?
1. fat in the human body exists in the form of cholesterol. True or false 2.An...
1. fat in the human body exists in the form of cholesterol. True or false 2.An --------pacemaker is an excitable focus outside of the normally functioning pacemaker of the heart 3.congestive heart failure is a complication of most forms of heart disease. true or false 4. The --------serves as a fetal connection between the pulmonary artery and the aorta
1.All cells in a human body undergo the process of meiosis. True False 2. Most cells...
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...
There are more cells than organelles in the human body. Briefly explain why it is false...
There are more cells than organelles in the human body. Briefly explain why it is false or reword it to make it true.
Name one type of cell in the human body from which you could NOT extract chromosomal...
Name one type of cell in the human body from which you could NOT extract chromosomal DNA and explain why.
True or False: Sex chromosomes in mammals Indicate whether each of the following statements about sex...
True or False:
Sex chromosomes in mammals Indicate whether each of the following statements about sex chromosomes in mammals is true or false. 01. Dosage compensation involves inactivation of the Y chromosome in males in order to equalize gene expression between the sexes.(Click to select) 02. One of the X chromosomes in each cell of a female is inactivated early in embryonic development, before the embryo's sex is determined. (Click to select) 03. In a female, the same X chromosome...
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity...
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity is always tangent to a streamline. vii) True / False: Turbulent flows are not affected by surface roughness.
Determine whether each of the following is TRUE (i.e. always true) or FALSE (i.e. not always true...
Determine whether each of the following is TRUE (i.e. always true) or FALSE (i.e. not always true) Justify your answers! (c) 2n-1(222) (a) 2n2 + n-1-0(2n2 +n). (b) 2n2 + n-1-0(2n2 + 2n).
Determine whether each of the following is TRUE (i.e. always true) or FALSE (i.e. not always true) Justify your answers! (c) 2n-1(222) (a) 2n2 + n-1-0(2n2 +n). (b) 2n2 + n-1-0(2n2 + 2n).
Answer True or False for all statements. True/False A concave mirror always forms a virtual image of...
Answer True or False for all statements. True/False A concave mirror always forms a virtual image of a real object. True/False The image produced by a convex mirror is always closer to the mirror than it would be in a plane mirror for the same object distance. True/False A concave mirror always forms an enlarged real image of a real object. True/False A virtual image formed by a concave mirror is always enlarged. True/False When an object is placed between a concave mirror and its...
True or False:
Sex chromosomes in mammals Indicate whether each of the following statements about sex chromosomes in mammals is true or false. 01. Dosage compensation involves inactivation of the Y chromosome in males in order to equalize gene expression between the sexes.(Click to select) 02. One of the X chromosomes in each cell of a female is inactivated early in embryonic development, before the embryo's sex is determined. (Click to select) 03. In a female, the same X chromosome...
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity is always tangent to a streamline. vii) True / False: Turbulent flows are not affected by surface roughness.
Determine whether each of the following is TRUE (i.e. always true) or FALSE (i.e. not always true) Justify your answers! (c) 2n-1(222) (a) 2n2 + n-1-0(2n2 +n). (b) 2n2 + n-1-0(2n2 + 2n).
Determine whether each of the following is TRUE (i.e. always true) or FALSE (i.e. not always true) Justify your answers! (c) 2n-1(222) (a) 2n2 + n-1-0(2n2 +n). (b) 2n2 + n-1-0(2n2 + 2n).
Most questions answered within 3 hours.
-
Generate 100,000 normal data with mean 70 and standard deviation
4.5. (Don’t show generated data). Graph...
asked 2 hours ago -
When you write code with conditional execution,
the reason why you should use 3 or less...
asked 1 hour ago -
(Intermediate Macroeconomics)
4.Suppose the consumption function of an economy is c =
100+0.8yd, investment I =...
asked 2 hours ago -
Why is anthocyanin is sensitive on pH level? And can you explain
these key factors on...
asked 2 hours ago -
1. If the concentration of AgNO3 is 0.00503 M
and the concentration of the LiCl solution...
asked 4 hours ago -
A patient's urine sample has a density of 1.02 g/mL. If 1250 mL
of urine was...
asked 3 hours ago -
A 3.0 cm -tall object is 50 cm in front of a convex mirror that
has...
asked 3 hours ago -
Name three ways that Scrum makes requirements change as easy
and cheap as
possible.
(please type...
asked 3 hours ago -
The equilibrium constant of a reaction is 1.12e+02 at 312 K and
2.02e+03 at 431 K....
asked 4 hours ago -
What input will successfully validate this program? (Please show
exactly how you did it, and what...
asked 4 hours ago -
Joy bought a computer for $3,500. Joy put down $500 and financed
the balance at 11%...
asked 5 hours ago -
Problem 8-10
Factor
Weight
East #1
East #2
West
Initial cost
8
130
120
140
Traffic...
asked 7 hours ago