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alexandr402 [8]
4 years ago
11

Gametes may carry different combinations of alleles because of

Biology
1 answer:
Simora [160]4 years ago
4 0

Answer:

Crossing over and random alignment of chromosones

Explanation:

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What is a consequence of air pollution caused by greenhouse gases emitted by cars?
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The answer is global climate change... 

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4 years ago
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If a large molecule needs to move against the concentration gradient, what structure will need to be used ?
zubka84 [21]

Answer:

The structure of ATP will need to be used.

Explanation:

Adenosine triphosphate or ATP is an energy rich compound which undergo hydrolysis in presence of water to generate free energy.

         When a molecule is moving against its concentration gradient it requires the input of energy which is generally supplied by the hydrolysis of ATP molecules.

For example Na+K+ATPase uses the energy derived from ATP hydrolysis to transport Na+ inside the cell and K+ outside the cell.

8 0
3 years ago
Which gas is released during the light reactions of photosynthesis?
Margaret [11]

Answer:

B for your first question.

A for your second question.

B for your third question.

Explanation:

I hope this helps!

4 0
3 years ago
What is a biofilm?
Hoochie [10]

Answer:

A group of bacteria that accumulate in layers and secrete a protective extracellular material. (Option A)

Explanation:

Biofilm is defined as one or more types of microorganisms collectively grow in different places. Organisms that form the biofilm include protests, fungi, and bacteria.

Dental plaque is an example of a biofilm. It is a known buildup of slimy bacteria that forms on the teeth surface. Biofilm can grow on different surfaces such as animal tissues, plant tissues, minerals, metal, etc.

5 0
3 years ago
If B represents the allele for black eyes (dominant) and b represents the allele for orange eyes (recessive), what would be the
Nuetrik [128]

Answer:

1 black : 1 orange

Explanation:

This is a typical monohybrid cross involving a single gene coding for eye color in MendAlien. The allele for black eyes (B) is dominant over the allele for orange eyes (b). In an heterozygous state, Bb i.e. combination of both dominant (B) and recessive (b) alleles, the MendAlien will be phenotypically black.

In a cross between a heterozygous MendAlien (Bb) and an orange-eyed MendAlien (bb), two of the offsprings will have a Bb genotype and be phenotypically black-eyed which the other two will have a bb genotype and be phenotypically orange-eyed. Thus, a phenotypic ratio of 2 Bb : 2 bb will be obtained.

This is also equal to 1:1 i.e. 1 black-eyed : 1 orange-eyed.

8 0
3 years ago
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