BIOLOGY HIGH SCHOOL

How can a Punnett square predict results of crossbreeding in peas?

Answers

Answer 1
Answer: I gives the possible genotypes of the peas to tell what the trait will be

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The red sizing bead in this image is 10um in diameter. What is the length of a chloroplast? a20um b100um c2um d1um e10um

Answers

The length of the chloroplast in the image is 100um.

In the attached image we can observe a red circle known as a red sizing bead over the chloroplast. Given that the size of the bead is 10um in diameter, we can conclude that the width of the chloroplast falls in the range of about 30um. By observing that the length is much greater than the width, we know it must be at least higher than 30, and it would seem to be approximately three times as much. With this information, we can conclude that of the options given, the chloroplast would be 100um in length.

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I think the length is a20um

Unlike in prokaryotic cells, replication in eukaryotic cellsa. is continuous in two directions until the whole chromosome is copied.
b. involves much less DNA.
c. can start in many different places on a sequence at the same time.
d. starts from a single point.

Answers

a. is continuous in two directions until the whole chromosome is copied.

The two identical daughter cells resulting from mitosis and cytokinesis are identical in the following ways:1. Mitosis occurs when the nucleus of the cell divides into two identical nuclei, each with the same type and number of chromosomes. The cell's DNA is duplicated during this phase. Sometimes the cell's DNA isn't copied properly resulting in cancer-type cells. 2. Cytokinesis is when the cytoplasm divides into two identical daughter cells. Each cell is genetically identical and both are a similar size. 

Actin and myosin, found mostly in muscles cells, are made up of which type of macromolecule?Nucleotides
Proteins
Lipids

Answers

Answer: Proteins

Actin belongs to a family of globular multifunctional protein and myosin is a belongs a family of motor proteins. Both actin and myosin combines to form microfilaments. These are found in the eukaryotic cells. In humans and animals the combination of actin and myosin is responsible for contraction and relaxation of muscles in the presence of ATP.

Final answer:

Actin and myosin, which are primarily found in muscle cells, are macromolecules made up of proteins. These proteins are critical in muscle movement and function.

Explanation:

Actin and myosin are made up of proteins. Proteins are one of the macromolecules vital for building and repairing tissue. In the context of muscle cells, actin and myosin play a pivotal role. They interact to cause muscle contraction, a process vital for movement. Actin is a thin filament while myosin is a thicker one, and they slide past each other to cause the contraction of the muscle. Therefore, proteins have a substantial role in muscle movement and function.

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The group of polar bears that live along the eastern coast of Russia makes up an organism. a community. an ecosystem. a population.

Answers

The group of polar bears that live along the eastern coast of Russia makes up a population. The correct option among all the options that are given in the question is the last option. These polar bears can weigh up to a staggering 800 kg. I hope you have got your answer and it has helped you.  

A group of polar bears that live along the eastern coast of Russia makes up a population. Details about population can be found below.

What is a population?

Population is a collection of organisms of a particular species, sharing a particular characteristic of interest, most often that of living in a given area.

A population can also be referred to as a group of organisms of the same species living together in the same habitat.

Therefore, it can be said that a group of polar bears that live along the easterncoast of Russia makes up a population.

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What is the name for different forms of a gene

Answers

Different forms of a gene are called alleles

What was the difference between Darwin and Lamarck? A. The idea of mutations was understood by both, but Lamarck was able to prove it. B. Lamarck was able to explain evolution with evidence, something Darwin did not do. C. Darwin was able to explain evolution with evidence, something Lamarck did not do. D. The idea of mutations was understood by both, but Darwin was able to prove it. I know it is definetly not b and c because they both had that in common

Answers

The main difference between Darwin and Lamarck was that "D. The idea of mutations was understood by both, but Darwin was able to prove it" although this is a lot like answer C...
The opposition between Darwin and Lamarck is D)  The idea of mutations was understood by both, but Darwin was able to prove it.
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