Answer:
The F1 progeny is completely heterozygous for the <em>loci</em> of interest since they were obtained by mating between two pure-breeding plant lines. In the next generation, the backcross progeny will have homo-zygous individuals and therefore they will be more variable, resulting from meiosis in F1 hybrids
Explanation:
An F1 resulting from the cross between two pure-breeding plant lines will produce all hybrid individuals, all of them genetically (and phenotypically) identical. Meiosis in F1 hybrids is well known to produce homo-zygous genotypes and thus increases genetic diversity in progeny. For instance, for a single <em>locus</em>, the expected ratio of genotypes obtained from crossing two heterozygous parents is 1:2:1, i.e., one homo-zigous dominant individual, two heterozygous individuals (genetically identical to the parents) and one homo-zygous recessive individual; while the expected phenotypic ratio is 3:1 (i.e., 3 dominant expressing: 1 recessive expressing).
I know this helps none… but i believe they are all correct.
Homeostasis is key as it is in essence the bodies ability to maintain a certain state, like a exact temperature, or a pH balance in your stomach.
Answer:
"Foods high in carbohydrates are an important part of a healthy diet. Carbohydrates provide the body with glucose, which is converted to energy used to support bodily functions and physical activity."
Explanation:
Answer:
Deep Ocean Trenches, Volcanic Island Arcs and mountains
Explanation:
At a convergent plate boundary two plates collides with one another. Based on the type of plate, different features can form at such a margin.
- In a continental - continental crust collision, both plates have the same density so, they build up on collision to form a mountain.
- In an oceanic - continental crust convergence; the oceanic plate is denser and it subducts. This leads to the formation of trenches. Also, here, the subducted plate will melt and a crack within the crust can allow for the melt to reach the surface and solidify to form volcanic Island arcs.
- Oceanic - oceanic crust convergence is also known.
