Biology Middle School

Alleles are:

A)different genes
B)building blocks of DNA
C)proteins
D)alternate forms of a gene

Answers

Answer 1

Answer:

Alternate form of gene

Explanation:

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

Answer 2

Answer:

its D Alternate form of gene

Related Questions

The soil in a flower pot, the amount of water added to the pot, the amount of
sunlight received by the plant, the amount and type of fertilizer given, and the
temperature of the air surrounding the pot all make up the plant's

a. ecosystems
b. habitat
c. abiotic factors
d. biotic factors

Answers

Abiotic factors. They are not living yet control the plant’s well being.

Abiotic factors are non-living components of an ecosystem that influence their surroundings. Examples may be light, water, and temperature in a terrestrial habitat, hence option C is correct.

What are abiotic factors?

Abiotic variables are non-living elements that have an impact on the survival, development, and existence of living things, including plants.

We may concentrate on the water as one of these abiotic elements even though there are many others that are equally significant and have a part to play.

Water is one of, if not the most, critical abiotic factors since it is essential for plant existence. Depending on how severe the absence of water is, it will be a limiting factor for a plant's growth or even life.

Therefore, abiotic factors are non-living components of an ecosystem that influence their surroundings, hence option C is correct.

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When used together, perspective and color variation create what effect for the
viewer?
A. A psychological reaction
B. The illusion of depth on a flat surface
C. The illusion that a three-dimensional object is flat
D. Temporary blindness

Answers

B. The illusion of depth on a flat surface

Which statement best supports the theory that eukaryotic cells evolved
through endosymbiosis?
A. Eukaryotic cells can eat prokaryotic cells by engulfing them with
cell membranes.
B. All prokaryotic cells are covered by a stiff cell wall that protects
them.
C. Their chloroplasts contain DNA that is similar to that of
prokaryotes.
D. Chains of amino acids form inside tiny bubbles filled with organic
molecules.

Answers

Answer:

Their chloroplasts contain DNA that is similar to that of

prokaryotes

Explanation:

This is based on the theory that the membrane bound organelles of chloroplast and mitochondria  which are peculiar to Eukaryotas evolved from bacteria by endosymbiosis. Thus bacteria contain the DNA of these organism Evidently, these organism (Eukaryotas) must have cohabited  with bacteriA some time ago

Which kind of organic molecules did Miller and Urey create in their
experiment?
A. Glucose
B. Nucleotides
C. ATP
D. DNA

Answers

Answer:

D

Explanation:

.Specific processes must take place within the cell for protein synthesis to occur. The processes that take place within a cell for protein synthesis to occur. Which occurs during translation but not during transcription? A DNA template is used to create an mRNA strand. A tRNA template is used to create a DNA strand. A tRNA template is used to create an mRNA strand. An mRNA template is used to create an amino acid chain.

Answers

Answer:

An mRNA template is used to create an amino acid chain.

Explanation:

Transcription is the first step in the protein synthesis process. Translation is the second.

Overall, the central dogma of biology is DNA->RNA->protein.

Transcription is that first step, DNA to RNA, and translation is RNA to protein: think of it like nucleic acids can just be transcribed, but nucleic acid to protein is like a whole different language, so it has to be translated. So the correct answer here is that mRNA is used to make amino acid chain (aka protein), which happens only in translation.

Temperature, pH, and ionic concentrations each play an important role in the proper functioning of enzymes.

Answers

Answer:

fracture the skull

Explanation:

im guessing

this is a true statement. if the three are not at a stable quantity enzymes can not fonction correctly.

Why are fossil fuels considered nonrenewable resources?

A. They take millions of years to form.
B. They cannot be used to create electricity.
C. They form quickly due to decaying biomass.
D. They require both sunlight and water to form.

Answers

The answer is A it takes a million of years to form

Fossils fuels take millions of years to form which are considered nonrenewable resources. So, the correct option is A.

What are Fossils fuels?

A fossil fuel is defined as a hydrocarbon-containing material which forms naturally in the earth's crust from the remains of dead plants and animals that is extracted and burned as fuel where as the main fossil fuels are coal, oil and natural gas.

Fossil energy sources include oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock. Fossils fuels take millions of years to form which are considered nonrenewable resources.

So, the correct option is A.

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The United States government does not allow travelers from foreign countries to bring plants, fruits, vegetables, animals, or other living organisms into this country. State one biological reason for keeping these out of the United States. ?

Answers

those plants, fruits or vegetables may contain parasites or harmful diseases
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