Answer:
There is no short answer.
Explanation:
The genotypes for the two parents in option A are FF and ff, so the resulting phenotypic and genotypic ratios that would be 100% absence of freckles and 100% Ff respectively.
The genotypes for the two parents in option B are Ff and ff, so the resulting phenotypic and genotypic ratios that would be 100% absence of freckles and 50% Ff, 50% ff respectively.
The genotypes for the two parents in option C are ff and ff, so the resulting phenotypic and genotypic ratios that would be 100% absence of freckles and 100% ff respectively.
The genotypes for the two parents in option D are Ff and Ff, so the resulting phenotypic and genotypic ratios that would be 75% absence of freckles, 25% freckles and 50% Ff, 25% FF, 25% ff respectively.
I hope this answer helps.
Answer:
Examples of chemical reactions in everyday life include photosynthesis, rust
Rust is exothermic
All combustion reactions (such as the burning of coal) are exothermic. Incredibly, the reaction between iron and moist air that produces rust is a very exothermic process and generates lots of heat.
Photosynthesis is endothermic
Photosynthesis is an endothermic reaction. This means it cannot occur without energy (from the Sun). The light required is absorbed by a green pigment called chlorophyll in the leaves.
Explanation:
Please Mark me brainliest
The answer is B. All plant cells have cell walls while animal cells do not.
No they don’t have mitochondria
Answer:
I think the heart
Explanation:
the heart pumps blood to everything else in the body and keeps everything running.