Answer:
Meiosis I, the first meiotic division, begins with prophase I. During prophase I, the complex of DNA and protein known as chromatin condenses to form chromosomes. The pairs of replicated chromosomes are known as sister chromatids, and they remain joined at a central point called the centromere.
Explanation:
Answer: option B - some gametes may have an extra copy of some genes.
Explanation:
Actually, nondisjunction occurs in meiosis and results in FOUR ABNORMAL GAMETES/DAUGHTER CELLS: two gametes have an EXTRA copy of gene e.g XXY, while two other gametes LACK a required copy e.g XO
So, the right answer is some gametes may have an extra copy of some genes.
According to Lavoisier's law, in the given reaction the mass of zinc produced will be 104 g.
Let's consider the following reaction.
Ca + ZnCO₃ ⇒ CaCO₃ + Zn
64g 192 g 152 g ? g
<h3>What does Lavoisier's law state?</h3>
Lavoisier's law states that the sum of the masses of the reactants before the reaction is equal to the sum of the masses of the products after the reaction.
mCa + mZnCO₃ = mCaCO₃ + mZn
mZn = mCa + mZnCO₃ - mCaCO₃
mZn = 64 g + 192 g - 152 g = 104 g
What would be the amount of zinc formed during the reaction?
- The mass of zinc produced will be 104 g. TRUE.
- The mass of zinc will be the same as that of zinc carbonate. FALSE.
- The mass of zinc produced will be 52 g. FALSE.
- The mass of zinc will be the same as that of calcium. FALSE.
According to Lavoisier's law, in the given reaction the mass of zinc produced will be 104 g.
Learn more about Lavoisier's law here: brainly.com/question/11429078
<h2>
Answer: C) Algae</h2>
Explanation:
By process of elimination:
- moss is a plant belonging to the Bryophyta division. It is not a protist
- paramecia are animal-like protists that don't generally photosynthesize
- protozoans feed on organic matter such as other microorganisms or organic tissues and debris (not autotrophic)
- This leaves Algae, which are autotrophic protists.
Answer:
A cell with two pairs of each set of chromosomes is called what?
Diploid chromosomes
Explanation:
It is called diploid because of the presence of two homologous chromosomes
