C. they are always heritable. b. they are inly heritable in gametes
Answer:
50%
Explanation:
Let's assume that the allele "T" gives the normal phenotype while the recessive allele "t" imparts the disease and is lethal in homozygous condition. The genotype of each of the two carrier parents would be "Tt". A cross between Tt and Tt would give the progeny in the following genotype ratio=
Tt x Tt= 1/4 TT: 1/2 Tt: 1/4 tt
Therefore, 1/2 or 50% progeny would be the carrier for the Tay-Sachs disease.
Fossils are the sediment layers trapped between plants and animals.They are <span>the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.</span>
That they both had nearly the same hypothesis
Order:
2 5 1 4 3
What the numbers mean:
From left to right the tiles are 1-5 just order them like second one first, fifth one second, first one third, fourth one fourth, third one last. Hope this helps!
(Ps I have them numbered because I had typed out the whole sentence but then I accidentally deleted it so I just numbered it)