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Natali [406]
3 years ago
8

Aliens from the planet Zorg have 100 chromosomes in their diploid cells. If a diploid alien cell enters meiosis, how many chromo

somes and double-helical molecules of DNA will be present in each daughter cell at the conclusion of Meiosis I _____.
Biology
1 answer:
stepan [7]3 years ago
8 0

Answer:

Chromosomes at the conclusion of Meiosis I  - 50

Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells

Explanation:

Given

Number of chromosomes in the diploid cells of Aliens from the planet Zorg = 100

In the Meiosis I cell division , a cell divides to produce two diploid cells with exactly the same amount of  DNA  as that of original parent cell.

However, the number of chromosomes is reduced to  by half at the end of meiosis I

After Meiosis II, four haploid cells are produces with half the amount of DNA  as that of original parent cell

Thus,

Chromosomes at the conclusion of Meiosis I  - 50

Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells

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olga_2 [115]

Answer:

pindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

Explanation:

7 0
3 years ago
Most coastal areas on Earth experience two high tides and two low tides every lunar day. What is a lunar day? Our days on Earth
ahrayia [7]

The correct answer is - C) 5:35 PM Friday.

The low tides occur twice in a lunar day, thus they are diurnal. The low tides appear when the Moon is between that point of the planet and the opposite of that point of the planet, thus in between, which is happening twice, on opposite parts of the planet.

Since the lunar day lasts for 24 h 50 m, we should just divide it in two, thus get 12 h 25 m. Than we should add the 12 h 25 to the time when one of the low tides appeared, which is 5:10 AM, so we will get 5:35 PM.

The low tides appear because the Moon is pulling the water upwards with its gravitational pull above the place where it is, so the side parts of the planet have their waters dragged away,thus resulting in the retreating of the water, known as low tide.

3 0
3 years ago
Read 2 more answers
The process in which organisms use chemical energy to make food is called _​
Alchen [17]

Answer:

Chemosynthesis

Explanation:

8 0
3 years ago
What is the daughter nucleus (nuclide) produced when 211 Pb undergoes beta decay by emitting an electron? Replace each question
poizon [28]
<h2>Daughter Nucleus</h2>

Explanation:

  • The original nucleus is known as the <em>parent nucleus</em>, and the core staying after the rot is known as the daughter nucleus
  • If a core radiates an alpha molecule, it loses two protons and daughter nucleus in this way, the little girl core has a nuclear mass of 4 less and a nuclear number of 2 not exactly the parent core
  • In β-decay, a neutron is changed over into a<em> proton, electron, and electron-anti neutrino</em>
  • Which builds the nuclear number of the nuclide by 1. <em>For 211Pb, this would bring about a nuclide of 211Bi.</em>
8 0
3 years ago
A ______________ is a change in matter in which the substances that make up the matter change into other substances that have ph
Eduardwww [97]

Answer:

chemical change.

Explanation:

There are two types of changes in matter: physical change and chemical change.

physical change- it is a change in matter that alters only its physical properties or its physical appearance. This type of change is reversible. For example- freezing of water, the water turns into solid ice and it can be reversed by melting the ice.

chemical change- it is a change in matter that alter its chemical and thus its physical properties. Most chemical changes are irreversible. for example- burning of paper, results in black soot and ashes- Thus changing both physical and chemical properties.

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