Answer: The correct answer would be YYRr and Y_Rr
Explanation:
Let us denote Y and y be the alleles of the gene responsible for seed color and R and r be the alleles of the gene responsible for seed shape. Capital letter is for dominant allele and small letter is for recessive allele.
Being dominant traits, both the parents should have at least one dominant allele of both the genes. It is because the phenotype of both parents is yellow and round seeds.
In addition, F1 shows single phenotype for seed color but both phenotype for seed shape. The presence of recessive phenotype in F1 indicates that both the parents must be heterozygous for seed shape, that is, Rr.
However, for seed color, it is possible that either one or both were homozygous, that is, either both YY or one parent is YY and another parent is Yy.
Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved. Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor.
A Limestone rock thats my answer
C) Tundra without a doubt, the tundra biome is very cold year-round and, in some cases especially in Antarctica, can has no visual of the sun for months at a time.
Answer:
A, B, E
Explanation:
The magma rising through the cracks makes new younger rocks close to the crack as the magma follows out and hardens. This means that rocks farther away from the crack are older because they where formed when they where right next to the crack. They are father away meaning they got pushed back as time went on.
Mid ocean ridges are a result of the spreading not the cause.
Because they are in the middle of the ocean and they are moving constantly i dought the mid ocean ridges are creating continents.
