Incontinetia pigmenti is an x-linked dominant condition. homozygotes and hemizygotes die in utero. in infancy ip causes blistering of parts of the skin, and patchy altered pigmentation later. a woman with ip has a newborn child. what is the chance that newborn will be an unaffected girl?

Option A

Explanation:

Complete Question

Incontinetia pigmenti is an X-linked dominant condition. Homozygotes and hemizygotes die in utero. In infancy IP causes blistering of parts of the skin, and patchy altered pigmentation later. A woman with IP has a newborn child. What is the chance that newborn will be an unaffected girl?

a. 1/4

b. 1/3

c. 1/2

d. 2/3

e. 3/4

f. Impossible to know without more information.

Solution

As we know that an X-linked dominant inheritance is a kind of genetic condition in which X linked mutant is a dominant trait. Thus, even if one copy of X chromosome is present, the offspring would be diseased individual.  

Here , Given

Woman has ip, hence in order to have unaffected girl child she must mate a normal man

Genotype of woman would be XX'

Genotype of man would be YX

XX' * YX

XY, XX, X'Y. X'X

Two daughter and two son will be produce.

Out of the two daughters one is diseased and another one is normal.

Thus, the chance that newborn will be an unaffected girl is

Thus, option A is correct

corona the outer atmosphere of the sun, temp. may reach 2,000,000 c

chromosphere middle layer of the sun's atmosphere

photosphere visible surface of the sun

convection zone layer of the sun which energy travels by convection from the radiative zone to the photosphere

radiative zone layer of the sun which energy is transferred away from the core by radiation

core very dense center of the sun

nuclear fusion process by which tow or more low-mass atomic nuclei fuse to form another, heavier nucleus.

radiation when energy is transferred as electromagnetic waves

convection the process in which heat is transferred by the circulation or movement of matter

differential rotation the way the sun rotates, rotating faster at its equator than at higher latitudes

sunspots dark areas that form on the surface of the sun

solar flare an explosive release of energy that can extend outward

prominences huge loops of cool gas that extend outward from the photosphere

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.