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8090 [49]
3 years ago
5

For which of these is DNA ultimately responsible?

Biology
1 answer:
Citrus2011 [14]3 years ago
8 0
Both a and b because brown hair is a trait passed down and the word “inherited” lets us know someone else in the family has had the disease before
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Someone please help, these questions are hard
Allushta [10]

Answer:

B: Polyermase Chain Reaction

Explanation:

PCR is when we take a segment of DNA and multiply it! We can see that the number of DNA segments are increasing therefore it is PCR. Hope this helps!

8 0
3 years ago
N pea plants there is complete dominance for the trait of flower color. the p allele produces purple flowers and p produces whit
Reptile [31]
PP-  purple homozygote
pp- white homozygote
Pp- purple hetrozygote

If these flowers cross, we obtain heterozygote offsprings with a genotype: Pp (100% of them will be like this)

Now, if those offsprings cross with each other: Pp x Pp
results:
  1/4 would be purple  homozygote -> PP
  1/4 would be white -> pp
  2/4 would be purple heterozygotes -> Pp
Genotipic ratio: 3:1 (3 are purple; 1 is white)
7 0
3 years ago
Ben and Sam were conducting experiments on physical and chemical changes in science class. First they added some salt to water a
8090 [49]

Answer:

Sam is correct. It is a chemical change and the contents should be in D. for compound.

Explanation:

This answer is correct because I just took the USA test prep

Good Luck!

6 0
3 years ago
Read 2 more answers
Which type of involuntary muscle is found only in the heart?
Pie
I would say b, that would only make sense to me cause it couldn’t be your stomach or skeletal
6 0
3 years ago
Approximately what percentage of humans are born with biological traits associated with neither exactly male nor female?
ruslelena [56]
It is approximately 1.7% of humans that are found to be born with biological traits that are associated with neither exactly male nor female. These conditions are called intersex, meaning that a person is born with reproductive system/s or organ/s that neither fits the characteristics of females or males.
5 0
3 years ago
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