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3 years ago

Haploid cells are

Biology

2 answers:

hichkok12 [17]3 years ago

8 0

C) sex cells with half the original chromosome number.

Hope this helps!

konstantin123 [22]3 years ago

6 0

Answer: The correct option is -

C) sex cells with half the original chromosome number.

Explanation:

Sex cells are the reproductive cells, which are also known as gametes (such as eggs and sperms) and are produced through meiosis.

Meiosis is a type of cell division that occurs during gamete formation, specifically in sexually reproducing organisms.

It is also called reductional division as it produces haploid sex cells, which possess half the number of original chromosomes.

Thus, option C) is the right answer.

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Which is true of the light reaction of photosynthesis?

german

Answer : C)

It is primarily divided into photochemical reaction and dark reaction.

The light reaction takes place within the thylakoid membranes of the plastid.

during this reaction, energy from daylight is captured by the pigment pigment via a series of chemical reactions.

This ends up in the formation of 2 high energy chemical compounds, that area unit adenosine triphosphate and NADPH.

These compounds area unit additional employed in the dark reaction for the synthesis of food ( that is glucose).

Thus, it produces adenosine triphosphate is true for the sunshine reaction of chemical process.

4 0

3 years ago

Match the items on the left with the best corresponding statement on the right. 1. contains tightly packaged DNA molecules R.C.

Brrunno [24]

Answer:

1. Chromosomes

2.Carl Correns

3. Mutation

4. Mitosis

5. Gregor Mendel

6. DNA

7.R.C. Punnett

8. Incomplete dominance

9. Meiosis

Explanation:

1. Chromosomes are described as thread-like structures. They are called DNA molecules because they are made up of DNA that are coiled up tightly. They are found in the nucleus of the cell.

2. Carl Correns was a botanist and geneticist who worked with flowers called four o'clocks. With the flowers he discovered different patterns of heredity, or non-mendelian heredity. He conducted this experiment to determine up to what extent do the Mendelian inheritance patterns remain valid.

3. Mutation is a change in in DNA. Since DNA controls how an organism develops ( in terms of appearance, structure, and behavior), a change in DNA would change many of those characteristics. Mutations can be good and bad, but it is essential to evolution and genetic diversity.

4. Mitosis is a type of cell division where the daughter cells get the same number of chromosomes as the parent. In other words, they are the exact copy of the parent cells. This occurs in body cells.

5. Gregor Mendel is known as the father of genetics for his laws of inheritance. His work on pea plants, he established the laws of heredity; Law of segregation; Law of Independent Assortment; and Law of Dominance.

6. DNA is short for Deoxyribonucleic Acid. It is a molecule that carries all the genetic information of an organism. It stores this information in the form of a code using 4 bases; Guanine, Adenine, Cytosine, and Thymine.

7. Reginald Crundall Punnett was a geneticist who linked statistics and mendellian genetics to come up with the Punnett Square. The Punnett Square is used to determine the probability of genotypes of offsprings, given the genotypes of the parents.

8. Incomplete dominance is a non-mendellian inheritance where instead of the dominant trait masking the recessive trait, the traits blend together. You can see this with some plants where when a white flower is crossed with a red flower, it results in pink flowers.

9. Meiosis is a type of cell division that occur in sex cells. The resulting daughter cells only have half the original number of chromosomes as the parent cells. The daughter cells only have half of the parent cells because unlike in mitosis, the cell divides twice.

3 0

3 years ago

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When atoms in a covalent bond share electrons unequally (one atoms pulls more than the other), the bond is said to be __________

IrinaK [193]

When atoms in a covalent bond share electrons unequally (one atoms pulls more than the other), the bond is said to be a polar bond is formed when electrons are unequally shared between two atoms. Polar covalent bonding occurs because one atom has a stronger affinity for electrons than the other (yet not enough to pull the electrons away completely and form an ion).

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3 years ago

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PLEASE HELP ME What are the steps to photosynthesis

RoseWind [281]

Explanation:

During photosynthesis, molecules in leaves capture sunlight and energize electrons, which are then stored in the covalent bonds of carbohydrate molecules. That energy within those covalent bonds will be released when they are broken during cell respiration. How long lasting and stable are those covalent bonds? The energy extracted today by the burning of coal and petroleum products represents sunlight energy captured and stored by photosynthesis almost 200 million years ago.

Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis. Because they use light to manufacture their own food, they are called photoautotrophs (“self-feeders using light”). Other organisms, such as animals, fungi, and most other bacteria, are termed heterotrophs (“other feeders”) because they must rely on the sugars produced by photosynthetic organisms for their energy needs. A third very interesting group of bacteria synthesize sugars, not by using sunlight’s energy, but by extracting energy from inorganic chemical compounds; hence, they are referred to as chemoautotrophs.

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3 years ago

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Which of the following sources of information always includes articles that have been reviewed by scientists who are experts in

Pavel [41]

I would say go with a

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2 years ago

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