Answer:
A diploid cell, with a chromosome charge of 2n = 2 will have in:
- <em>G1 = 4 strands of DNA, two for each DNA molecule.
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- <em>G2 = 8 strands of DNA.
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- <em>Prophase I = 8 strands of DNA.
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- <em>Telophase II = 2 DNA strands per nucleus.</em>
Explanation:
The cell cycle is divided, broadly speaking, into interphase and cell division (M). The process of division -by mitosis or meiosis- involves a series of intermediate steps that conclude with the production of two identical cells (diploid) or two cells with half the chromosome load (haploid), respectively.
- <em>In the </em><em>G1 phase</em><em> the cell is in interphase, so the nuclear DNA has not yet replicated. For a cell with 2n = 2, its nucleus has four strands of DNA.
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- <em>In </em><em>G2 phase</em><em>, after DNA replication, the number of DNA strands is doubled, so now in the cell nucleus of the cell there are 4 DNA molecules, each with double strands, so there is a total of 8 DNA strands.
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- <em>In </em><em>prophase I </em><em>of mitosis or meiosis the cell still does not divide there are 4 DNA molecules and 8 DNA strands, as in the previous step.
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- <em>In </em><em>telophase II</em><em>, which only occurs in meiosis, the chromosome charge has been halved, so each daughter cell will have one chromosome (n = 1), one single DNA molecule and 2 DNA strands per nucleus.</em>
Answer:
<em>Human biology</em>
Explanation:
Human biology can be described as a branch of biology which is interdisciplinary and carries every biological aspect of the human study. In the field of human biology, the functioning, development, immunity, homeostasis etc everything related to humans can be studied. The field of human biology is divided into many branches so that every aspect of the humans can be studied and considered upon in a detailed version.
The correct answer is B. Sensitive period
Explanation:
In development, the sensitive period refers to a lapse of time in which organisms are more susceptible or receptive to stimuli and therefore during this time there can be great advances in development. Additionally, different from critical periods sensitive periods do not imply irreversible consequence if the stimuli are not presented. For example, in human beings from birth to the age of 6 years, children are more receptive to learn and acquire certain skills such as learning a new language if exposed to it and therefore this can be considered as a sensitive period. Considering this, it can be concluded the definition presented refers to the Sensitive period.
Answer:
1.a group of individuals of the same species that live in the same general location and have the potential to interbreed is the correct answer.
Explanation:
A population is defined as all organisms of the same species that live in a particular location and have the potential of interbreeding.
The characteristics of the population are
- population density
- population distribution
- Population size
- Age structure
The population is one of the most essential factors that play a major role to stabilize the environment.
Answer:
Land plants are multicellular organisms that can be distinguished from other living things by a number of characteristics: They make their own food. Plants are photosynthetic and contain a green pigment called chlorophyll, which enables plants to convert energy from the sun into food. Plants store their food as starch.
Explanation:
You may need to reword it a bit. This should be right.
