Answer:oxygen
Explanation:
Answer:
Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive when two parents have the genotype of allele like XXi XY in which the Xi will be the allele for the 25% of red eye color.
Explanation:
We know that punnet square is a diagrammatic representation to predict the result of cross as well as breeding experiment. This is being used for getting the probability of offspring with particular genotype. Based on the best possible answer if the two parents have the genotype of allele like XXi XY in which the Xi will be the allele for the red eye color. The eye color gene is present in the X chromosome.
Answer:
A
Explanation:
2. Points
How is hydrogen in heavy water different from hydrogen in normal water?
A. The hydrogen atoms in heavy water have a neutron in the nucleus,
doubling the mass.
B. The hydrogen atoms in heavy water have an extra proton in the
nucleus.
O
C. The hydrogen in heavy water is radioactive.
O
D. The heavy water molecules contain 3 hydrogen atoms instead of
Hydrogen in heavy water different from hydrogen in normal water as the hydrogen atoms in heavy water have a neutron in the nucleus,doubling the mass.
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
Learn more about atom,here:
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Answer:
Explanation:
Heavy water (deuterium oxide, 2
H
2O, D
2O) is a form of water that contains a larger than normal amount of the hydrogen isotope deuterium (2
H or D, also known as heavy hydrogen), rather than the common hydrogen-1 isotope (1
H or H, also called protium) that makes up most of the hydrogen in normal water.[4] The presence of deuterium gives the water different nuclear properties, and the increase of mass gives it slightly different physical and chemical properties when compared to normal water. It can be used to create ice and snow at higher temperatures since its melting point is 3.82 C.
B : nonspecific
Answer:
specific
Explanation:
a mole represents the amount of grams it takes to have avogadro's number
Answer:
A is your answer
Explanation: