Answer:
0% (none)
Explanation:
The female drosophila is heterozygous for X-linked recessive mutation. An X-linked recessive mutation is expressed in females only when present in the homozygous state. Therefore, the female progeny should have two copies of the mutant allele to express this mutation. Let's suppose that the genotype of the heterozygous female is X^cX and that of the male is XY. The cross would obtain progeny in following ratio=
X^cX x XY= 1/4 X^cX: 1/4 XX: 1/4 X^cY: 1/4 XY
Since none of the female progeny is homozygous recessive (X^cX^c), the cross would not obtain any female progeny expressing the X-linked recessive mutation.
The temperature turning coke will not affect the fish, because oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds.
Troposphere -----------------
1 molecules of mgcl2 = 95.11
1 mole in 1 molecules of mgcl2 is 1/95.11= 0.010514
or total moles in 312 gm of mgcl2 is
0.010514*312
=3.280368 m
The skeletal system relates to the structure & support of organisms; made of salts and proteins which are found in vertebrate animals and also protects internal organs