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GarryVolchara [31]
3 years ago
15

Describe the structure and function of nucleic acids.

Biology
1 answer:
Morgarella [4.7K]3 years ago
4 0
Nucleic acids<span> are long chains made of individual, repeated units called monomers. The particular name for the units of </span>nucleic acids<span> are called nucleotides and each contains three things: a phosphate group, a sugar (deoxyribose in DNA and ribose in RNA) and a nitrogenous base. </span>
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What is the genotype of a male with red-green color blindness?
balandron [24]

Answer:

The genotype of male with red-green color blindness is XY, X chromosome possessing recessive allele of gene responsible for differentiating red-green color.

Explanation:

Color blindness is sex-linked trait and its inheritance follows criss-cross pattern. Dominant gene of allelomorpihc pair enables a person to differentiate between red and green color.

The genotype of male and female are different for the pair of sex chromosomes. Male is hetero-zygous (XY) and female is homo-zygous (XX). The gene controlling this trait is present on X chromosome.

Hope this helps (:

8 0
3 years ago
If a cell were treated with poison to block to function of its michocondria which of the following would be likely result?
blagie [28]
<span>The pH of the matrix increases and the pH of the inter membrane cell decreases
</span>
The reason behind this is the presence of the electron transport chain within the mitochondria which requires the transport of hydrogen ions. The movement of hydrogen ions results in varying pH. If the mitochondria dies, the hydrogen ions will not move into the matrix, causing its pH to increase, and they will build up in the inter membrane causing a decrease in pH.
6 0
3 years ago
Select the correct text in the passage.
lisabon 2012 [21]
numero dos second one
4 0
3 years ago
Imagine that part of a population of South American finches is blown by a storm onto an island far offshore and manages to survi
lina2011 [118]

Answer: The observation "A" leads us to conclude that the finches populations are from two different species

Explanation:

According to the biological concept of species, <em>a set of individuals are from the same species if they are able to reproduce and leave fertile offspring</em>. This is key so one species can be successful and perpetuate through time. If they cannot leave descendants, then the species will be extinct. However, it’s possible that two individuals from different species mate and have descendants, but they cannot leave fertile offspring. When they are from different species, the offspring will be sterile and it is called a hybrid.  

In the case of the South American finch, the island's finch population and mainland's finch population belong to different species because their offspring is sterile. To have different features, as different feather's color, or to have other dietary preference is not enough to say that they are different species. This is because within the same species, individuals can have variations. For example, we can different eye color and belong to the same species.

6 0
3 years ago
Question 4 .Which process is a physical change?
ohaa [14]

Explanation:

Which process is a physical change?

c. melting ice

If you break a piece of glass, the shape of the glass changes, but the properties in the fragments remain the same. Which of the following has occurred?

d. a physical change

A substance made up of two or more elements that have been chemically combined is called

c. a compound

Of the three ordinary states of matter, gas is the only state that

c. is highly compressible

In which state of matter do the particles have the most energy?

b. gas

Elements in group 18 called Noble Gases are highly reactive because they have 1 valence electron.

false

Atomic mass is the sum of

b. protons and neutrons

The current model of the atom is known as

a. Rutherford's model

Most elements on the periodic table are

d. metals

Which is not a quality of a non-metal?

a. shiny

Hope this helps.

3 0
3 years ago
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