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natali 33 [55]
3 years ago
7

The model below represents a DNA molecule. The presence of which element best provides evidence that nucleotides are the buildin

g material used to make DNA?

Biology
1 answer:
uranmaximum [27]3 years ago
7 0
DNA has 3 components; phosphate, a sugar called deoxyribose (a 5 carbon sugar as opposed to the sugar in the picture which is a 6 carbon sugar - glucose) and a nitrogenous base (adenine, thymine, guanosine or cytosine). So if you look at those 3 pictures, the only one is the nucleotide that's part of the DNA.

Re-read the question: the presence of phosphorous is the answer!!
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n mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele (coats are n
nexus9112 [7]

Answer:

The probability of getting a dwarf and pink female is 1/2

Explanation:

In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele where coats are normally brownish.

A dwarf female from a pure line will have Xd Xd where d represent the  recessive trait and the female is also brownish (pp).

A pink male from a pure line will be XPY where P represent the dominant allele but not a dwarf (D).

            Xd             Xd                            Xp          Xp

XD       XDXd        XDXd             XP    XPXp     XPXp    F1 generation

Y           XdY           XdY                Y     XpY        XpY

P        XDXd   x    XdY                        XPXp    x    XpY

           XD         Xd                               XP              Xp

Xd     XDXd    <u>XdXd</u>                  Xp    <u>XPXp</u>         XpXp         F2 generation

Y        XDY        XdY                   Y       XPY          XpY

The probability of getting a dwarf and pink female is 1/2

5 0
3 years ago
Both dna and rna are made of subunits or building blocks called
Trava [24]
Sugar-phosphates and nucleotides
4 0
3 years ago
Which process allows a mammal to continue to grow in size
Elden [556K]
It would be the mitosis of the body cells

Hope this helps :)
8 0
2 years ago
In a topoisomerase reaction, the _____ is used as the first nucleophile and the _____ is used as the second nucleophile.
Alchen [17]

Answer:

a. hydroxyle in tyrosine

b. 3' OH

Request: Please mark me as the Brainliest.

8 0
2 years ago
Two guinea pigs are crossed, one parent is Ss, the other ss. What is the probability of a baby guinea pig from this cross having
Reptile [31]

Answer: B. 50%

Explanation: Image attached

3 0
2 years ago
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