What is meiosis getting ready for

Answers

Answer 1

Answer: The process of meiosis is the cell division that prepares the species for sexual reproduction. Through meiosis cells goes from diploid (2n) cells to haploid (n) gamates. Each daughter cell carries exactly one half of the genetic material from the mother cell. In females the result of meiosis is the production of egg cells, where in the male, the result of meiosis is the production of sperm cells.

Answer 2

Answer:

Hello there! :)

Explanation: Meiosis is the process of two cell divisions by which one diploid cell produces four haploid cells with half the number of chromosomes as the parent cell.

Hope this helps!

-Charlie

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What is the origin of etiology of asthma

Answers

Asthma is a chronic disease of the lung that has been increasing at an alarming rate in industrialized countries around the world over the last few decades. Although considerable progress has been made in our understanding of the underlying pathogenesis of the disease, the exact causes of the increasing prevalence are unknown. Studies suggest that most asthma develops in early childhood and that environmental factors present early in life may be crucial in the development of disease. One potential explanation for the recent epidemic referred to as the "hygiene hypothesis" postulates that factors that have resulted in a reduction in exposure to microbial products and/or infections in the western world may be contributing to this rise in disease prevalence. As early life influences are known to play an important role in establishment of asthma, studies have focused on the interface between mother and child that occurs during gestation and through breastfeeding. In this regard, the body of evidence regarding the relationship between breastfeeding and asthma indicates benefit but with the potential for risk. While providing population-level protection from infections and atopy in infancy and early childhood, breastfeeding might also pose an increased risk of atopic asthma among children with asthmatic mothers.

The events that lead to genetic drift are _______. a. always natural disastersb. random
c. predictable
d. related to human activities

Answers

I think the correct answer from the choices listed above is option B. The events that lead to genetic drift are random. Genetic drift involves the change in relative frequencies of different genotypes in a small population which happens by chance so they are unpredictable.

The events that lead to genetic drift are random. Genetic drift is a random change in the allele frequencies of a population. It is caused by chance events, such as the founder effect or the bottleneck effect. Hence option B is correct.

These events can cause some alleles to become more common in a population, while other alleles become less common.

Genetic drift is not always caused by natural disasters. It can also be caused by human activities, such as migration or selective breeding. However, the events that lead to genetic drift are always random.

Therefore, option B) Random is correct.

To know mroe about Genetic drift:

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Which statement is one component of the cell theory?

Answers

The options attached to the question above are given below:

A. All living and nonliving things consist of one or more cells.

B. Cells and living organisms are spontaneously created.

C. Cells are the most complex unit of structure and function in living things.

D. A cell is the basic unit of structure and function of all organisms

ANSWER

The correct option is D.

The cell theory is one of the major theories in biology and it states the facts about living cells. The theory states that, the cell is the most basic unit of all organisms and all living organisms are made up of one or more cells. The organisms that are made up of only one cell are described as unicellular while those that possess many cells are described as multi cellular. The theory also states that all cells come from pre-existing cells.

the correct answer is d

In 1809, Lamarck developed one of the first theories of evolution called the

Answers

the inheritance of acquired characteristics

aquired traits. The ideas are flawed but he is one of the first to propose a mechanism explaining how organisms change over time.

Justin in looking at 2 chromosomes that have identical alleles for particular trait. these chromosomes are considered what

Answers

Justin is looking at two chromosomes that have identical alleles for particular traits, these chromosomes are considered homozygous. Homozygous alleles are those that have alternative form of a given gene. It may be recessive or dominant. The dominant trait is represeted by capital letters while the recessive trait is represented by small letters.

C. h -> <- h

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Testing a hypothesis is called a(n) _____. control scientific law experiment variable

Answers

Answer:

It is called a variable

Explanation:

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