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den301095 [7]
3 years ago
5

If you can see an organism without a microscope which of the following do you know is false about the organism ?

Biology
2 answers:
Snezhnost [94]3 years ago
7 0

Answer

It is made of prokaryotic cells

Explanation:

Prokaryotes are the organisms that are unicellular which means they are made up of only one cell. As they are made up of only single cells which are mostly microscopic in size therefore they can not be seen by naked eyes.

So all most all the organisms that we can see without a microscope are multicellular and are eukaryotes. Even single eukaryotic cell is so much small that we require a microscope to see it but multicellular organisms that can be seen are made up of thousands of these cells, therefore, they can be seen by naked eyes.

So the false option is-  It is made of prokaryotic cells.

Alex Ar [27]3 years ago
6 0

Hello!


Your answers will be those of the following:

It's Made Of Prokaryotic Cells



Sorry!! I don't know if I missed one, but I also skipped 7th Grade science so even if I did miss one, I hope you pass your test!!



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How many chromosomes does a body cell for the organism (egg and sperm) have?
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Chromosomes and DNA

Chromosomes are DNA wrapped around proteins to form an X-shaped structure.



The diagram will help you see the relationship.

1. Chromosomes are found in the nucleus
2. Chromosomes are made of DNA
3. Sections of chromosomes are called genes



DNA - deoxyribonucleic acid (it is the genetic code that contains all the information needed to build and maintain an organism)





Chromosome Structure







Chromosome Numbers

Each organism has a distinct number of chromosomes, in humans, every cell contains 46 chromosomes. Other organisms have different numbers, for instance, a dog has 78 chromosomes per cell.

Somatic Cells - body cells, such as muscle, skin, blood ...etc. These cells contain a complete set of chromosomes (46 in humans) and are called DIPLOID.

Sex Cells - also known as gametes. These cells contain half the number of chromosomes as body cells and are called HAPLOID

Chromosomes come in pairs, called Homologous Pairs (or homologs). Imagine homologs as a matching set, but they are not exacly alike, like a pair of shoes.

Diploid cells have 23 homologous pairs = total of 46

Haploid cells have 23 chromosomes (that are not paired) = total of 23

Homologous Chromosomes



Sex Determination

Chromosomes determine the sex of an offspring. In humans, a pair of chromosomes called SEX CHROMOSOMES determine the sex.

If you have XX sex chromosomes - you are female

If you have XY sex chromosomes - you are male

During fertilization, sperm cells will either contain an X or a Y chromosome (in addition to 22 other chromosomes - total of 23). If a sperm containing an X chromosome fertilizes an egg, the offspring will be female. If a sperm cell containing a Y chromosome fertilizes an egg, the offspring will be male.

Creation of a Zygote

When two sex cells, or gametes come together, the resulting fertilized egg is called a ZYGOTE

Zygotes are diploid and have the total 46 chromosomes (in humans)

Karyotype

A karyotype is a picture of a person's (or fetus) chromosomes. A karyotype is often done to determine if the offspring has the correct number of chromosomes. An incorrect number of chromosomes indicates that the child will have a condition, like Down Syndrome

Compare the Karyotypes below













Notice that a person with Down Syndrome has an extra chromosome #21. Instead of a pair, this person has 3 chromosomes - a condition called TRISOMY (tri = three)

Trisomy results when chromosomes fail to separate - NONDISJUNCTION - when sex cells are created. The resulting egg or sperm has 24 instead of the normal 23.

Other conditions result from having the wrong number of chromosomes:

Klinefelters Syndrome - XXY (sex chromosomes)

Edward Syndrome - Trisomy of chromosome #13
4 0
3 years ago
What's average temperature for a city fir a year
victus00 [196]

Answer:  

Average annual temperature in US cities would range between 50-70 degrees Fahrenheit  

Explanation:  

There are several factors that can influence the temperature of city in general. Higher altitude has a lower temperature because it has less air density and absorbs less sunlight. The city latitude coordinate also determines how much sunlight they will get. The closer the city to the equator, the more sunlight they can get.

Distance to the sea will influence the rate of rainfall and also influence temperature. Ocean currents can move hot water from other regions too.

3 0
3 years ago
Antibiotics are medicines that kill or slow the growth of this type of organisim
matrenka [14]
Bacteria ...........
5 0
3 years ago
A dumping site in the small town of Love Canal, New York, was used for the disposal of industrial chemical wastes from 1970-1975
zheka24 [161]

Answer:

There is no control group and variables were not addressed.

Explanation:

In the context, it is given that there is a dumping ground in a small town called Love Canal and harmful chemical waste of industries are dumped there. Lately, it is noticed that there were traces of the toxic substances on the walls of the schools and the hospitals. The hospitals also noticed that during the period of 1970 to 1980, there were increase in the number of the birth defects in the area. The people of the Love Canal has genetic abnormalities and the chemical waste is responsible for it.

Thus it can be concluded that there is a no such any control group in this case. The confounding variables like the comorbidities as well as the family history of the genetic defects were not addressed.

4 0
2 years ago
What would the genotype of the parent mice need to produce offspring with the genotypes. FF and Ff? (An empty punnet square is p
zhenek [66]

The genotypes of the parents to produce offspring with the genotypes FF and Ff are FF and Ff.

<h3>What is Punnett square?</h3>

The Punnett square is a graphical representation used to determine the frequency of a given genotype.

In this case, the Punnett square may be (alternatively, parents can also be heterozygous):

     F     f

F   FF   Ff

F   FF   Ff

In conclusion, the genotypes of the parents are FF and Ff.

Learn more about Punnett square here:

brainly.com/question/3522181

#SPJ1

5 0
2 years ago
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