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aleksklad [387]
3 years ago
9

A molecule of is shaped like a double helix, which makes it look like a spiral staircase,

Biology
1 answer:
lorasvet [3.4K]3 years ago
6 0

Answer:

DNA

Explanation:

dna has a double helix structure. making it look like a spiral staircase

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What are the most numerous cells in the lungs?
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Which of the following phenotypic classes reflect offspring that were generated as a result of a recombination event?
babymother [125]

Answer:

The correct options are: A " vestigial wings, red eyes" and D "full wings, purple eyes"

Explanation:

female parent: vg+pr+/vg pr

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male parent:  vgpr/vgpr

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Of these traits, vestigial wings and purple eyes are recessive traits. Hence, when a recombination event occurs, the offspring can potentially have a wild type trait paired with a recessive trait.

6 0
3 years ago
What is an educated guess posed as a tentative explanation called
Leokris [45]
An educated guess that is aslo posed as a tentative explanation is called a hypothesis.

4 0
3 years ago
What would happen to the possible variation in gametes if the number if chromosome pairs increased from two to three?
Orlov [11]
<span>If each of the pairs of chromosomes was heterozygous (what gives you the highest potential number of different gametes), then the number of possible gametes increases from 4 to 8 for a diploid organism. To figure out how many are possible, raise the number of homologous chromsomes (2 for a diploid organism) to the power of the number of chromosomes. So if you have two different chromosomes (A and B), raise 2 to the 2nd power (or multiply 2 x 2) and you have 4. If you have chromosomes A, B, and C, then you have 2^3, or 2 x 2 x 2 = 8.

To show possible combinations, AaBb gives you AB, Ab, aB, or ab. AaBbCc gives possible gametes of ABC, ABc, AbC, Abc, aBC, aBc, abC, and abc. </span>
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3 years ago
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