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3 years ago

Which is not a common nonmetallic mineral? Sodium,aggregate, garnet, or limestone?

Biology

2 answers:

Sonja [21]3 years ago

6 0

the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group. sodium i think.

White raven [17]3 years ago

5 0

Answer: sodium

Explanation:

Non-metallic minerals are the minerals which contain non-metals. Like non-metals these minerals do not exhibit luster and they break off easily. Examples of non-metallic minerals include limestone, aggregate, and garnate.

Sodium is an alkali metal, which is highly reactive and silver white in color.

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I Organisms can be dassified based on homology, which is shared characteristics inherited from a common ancestor. In the past, h

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Answer:

DNA Bases

Explanation:

It can't be cellular organelles, division of the nuclear chromosomes, and types of proteins needed for cellular functions, so the answer is DNA bases.

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2 years ago

what are the living things and non- living things that are usually present in a typical Philippine rice field

Natali5045456 [20]

Jjrnnejejejieieiehnend

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2 years ago

An additional gene, gene W, was also examined. A test cross was made between true-breeding EEWW flies and EEWW flies. The result

Debora [2.8K]

This question is incorrect but here is the correct question below;

An additional gene,gene W was also examined. a test cross was made between true breeding EEWW flies and eeww flies. The resulting F₁ generation was then crossed with eeww flies. 100 offspring in the F₂ generation were examined and it was discovered that the E and W genes were not linked.

Which is the correct genotype of the F₂ offspring if the genes were linked and if the genes were not linked?

a) Linked: 50% EeWw and 50% eeww; not linked: 25% EeWw, 25% Eeww, 25% eeWw and 25% eeww.

b) Linked: 25% Eeww, 50% eeWw; not linked:parental genotypes EeWw and eeww.

c) Linked genotypes (EeWw and eeww) and recombinant genotype ( Eeww & eeWw) in the F₂ generation are nearly the same irrespective of their linkage.

d) Linked: mostly with parental genotypes, Eeww and eeWw; unlinked: 25% EeWw and eeww with 75% Eeww and eeWw.

Answer:

a) Linked: 50% EeWw and 50% eeww; not linked: 25% EeWw, 25% Eeww, 25% eeWw and 25% eeww.

Explanation:

a test cross was made between true breeding EEWW flies and eeww flies

If EEWW self crossed, we have the following ( EW, EW, EW, EW)

Also, for eeww, we have ( ew, ew, ew, ew)

EW EW EW EW

ew EWew EWew EWew EWew

All offspring are (EWew)

The question goes further by saying "The resulting F₁ generation was then crossed with eeww flies".

And we are asked to find the correct genotype of the F₂ offspring if the genes were linked and if the genes were not linked

∴

To determine the offsprings of the linked genes we need to go by the definition and understand what linked genes are: Linked genes are genes that are physically close together on the same chromosomes. Effect of recombinantion on linked genes, results in gene swaps which occur in chromosomes that are homologous.

Having said that; If EWew × eeww

we have; EW & ew × ew & ew

EW ew

ew EeWw eeww

offspring that

are linked in ⇒ EeWw EeWw & eeww eeww

F₂ will be

$\frac{1}{2}$ = 50% of EeWw of the total 100 offspring in the F₂ cross

$\frac{1}{2}$ = 50% of eeww of the total 100 offspring in the F₂ cross

∴ Linked genes = 50% EeWw and 50% eeww.

For unlinked genes; If EWew × eeww

if rearrangement occurs in EWew and EWew self crossed, we have ( EW,Ew,eW,ew) as the traits needed for the unlinked gene F₂ crossing.

Also ewew will be (ew, ew, ew, ew).

EW Ew eW ew

ew EeWw Eeww eeWw eeww

We have the following results for the unlinked genes

$\frac{1}{4}$ = EeWw 25% of the total 100 offspring in the F₂ cross

$\frac{1}{4}$ = Eeww 25% of the total 100 offspring in the F₂ cross

$\frac{1}{4}$ = eeWw 25% of the total 100 offspring in the F₂ cross

$\frac{1}{4}$ = eeww 25% of the total 100 offspring in the F₂ cross

∴ not linked: 25% EeWw, 25% Eeww, 25% eeWw and 25% eeww.

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3 years ago

Ten square miles of temperate forest has a larger variety of organisms than 10 square miles of taiga

Radda [10]

Very little succession

4 0

3 years ago

What three categories of energy expenditure make up the total energy expenditure? Define each briefly. For the average person, h

Ratling [72]

The categories of energy expenditure include the following:

Resting metabolic rate - This is the total number of calories burned when your body is completely at rest and accounts for 60-75 percent

Thermic effect of feeding - This happens during feeding in which the metabolic rate increases and heat is produced and accounts for 5-15 percent

The thermic effect of activity - the amount of energy burned during all physical activity and accounts for 15-30 percent.

<h3>What is Energy expenditure?</h3>

These are the processes which involves how energy is used or spent. The categories are mentioned above with their appropriate explanations.

Read more about Energy expenditure here brainly.com/question/24652118

4 0

2 years ago