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.
The answer is A. Environmental conditions are not always right to produce flowers and seeds for sexual reproduction.
Most plants are able to reproduce either way because even if the conditions aren't right for the plant, it can still make more flowers so it doesn't die out.
I hope this helps! :D
Carbohydrates
Because they r known as energy giving food
Answer:
Light is refracted when it crosses the interface from air into glass in which it moves more slowly.
Explanation:
BRAINLIEST plz
Answer:
Stratosphere-characterized by strong,steady wind.Troposphere-responsible for earths weatherIntrusive Igneous Rocks-formed from magma cooling…Crust- made of mostly silicon dioxide Metamorphic rocks- formed when heat and pressure…
Explanation:
