If we name the gene for freckles with F, then the genotypes for having freckles are Ff (heterozygous), FF (dominant homozygous) and for no freckles ff (recessive homozygous).
If we name the gene for nose shape with N, than the genotypes for broad noses are NN (dominant homozygous) and Nn (heterozygous) and for narrow noses nn (recessive homozygous). A cross between two heterozygous:
P: FfNn x FfNn
F1:
9/16 are with freckles and broad noses
3/16 are with freckles and narrow noses
3/16 are with no freckles and broad noses
1/16 are with no freckles and narrow noses.
The statement about boiling points that is true is the boiling point of a substance is higher than its freezing point.
If something boils, it means it is really hot in there, and if it freezes, it is very cold.
Answer:
Carlo Linneus
Explanation:
great scientist discovered cell under microscope
Answer:
enzymes
Explanation:
Enzymes are organic molecules made up of proteins that catalyze reactions by either speed up or controlling the chemical reaction.
Enzymes are specific in the reactions they catalyze. An enzyme will only catalyze one specific reaction or a group of closely related reactions. For enzymes to catalyze a reaction, the substrate must fit in the active site on the surface of the enzyme. This forms an enzyme-substrate complex. The enzyme speeds up the formation of the products.
Answer:
a
Explanation: the genotype is the same
