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oee [108]
3 years ago
11

What evidence shows that white dwarfs must be very small?

Biology
1 answer:
Drupady [299]3 years ago
7 0

Spectral analysis proposes that there is no hydrogen fusion roughly speaking. They are hot since they are very thick. So if you are a convinced high density and temperature and still not doing synthesis, you must be small. Also, stellar evolution models are founded on the observation of planetary nebulae, where stars have shed most of their mass after being red giants. The physics designates a small, hot, central remainder. 

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Eye pigment in a particular strain of fly is determined by two genes. An autosomal gene that controls the color of the pigments
Semenov [28]

RrXtXt×RrXTY is representing the cross between the white eyed female and red eyed male.

Option D

<h3><u>Explanation:</u></h3>

The genes that are discussed here both are completely dominant over their recessive alleles. In the autosome, the dominant R gene is responsible for red eye and recessive r gene is responsible for sepia eye. But in allosome, the dominant T gene allows the eye colour to be expressed and the recessive t gene doesn't allow eye colour to be expressed and makes it white.

As the female do have 2 X chromosomes and the female is white eyed, then both the chromosomes of female have t gene.

As the male is red eyed and have one X chromosome, so the male must have atleast one R gene in autosome to make the eye colour red and must have T gene in his X chromosome to make it appear in phenotype.

So the most possible cross that is given here is RrXtXt×RrXTY.

6 0
3 years ago
Forensic labs use analytical instruments to analyze evidence that is collected at a crime scene. How do these analytical instrum
Vinil7 [7]

Answer: none of the above

Explanation:

None of the above

7 0
3 years ago
a black rooster Mated with a white hen. based on genotypes, the chance that the offspring will be checkered is 100 percent. what
gtnhenbr [62]

Answer:

The genotypes of the rooster and the chicken are homozygous and that of their offspring is heterozygous.

This case is called codominance, where the offspring receives an allele from each parent, from the rooster and the hen, because there is codominance, so neither allele is recessive and the phenotype of both alleles is expressed so the phenotype of the offspring is checkered.

We can say then that the chicken and the rooster have equal strength between their alleles. in the cases of codominance the laws of mendel do not apply.

5 0
3 years ago
Read 2 more answers
If you mix the Pattersonase gene sequence with EcoRI, how many
miv72 [106K]

Answer:One EcoRI site can be found in 4096 bp.As EcoRI can not cut a sequence if it is not complete, so 732421 recognition sites in human genome can be found. As you know human genome is linear genome, and when you digest it with Restriction Endonuclease having one recognition site, it always gives two fragments.

Explanation: (Idek how to explain it tbh..sorry :C )

8 0
3 years ago
A person who has allergies has a compromised immune system because the body's immune system
Wewaii [24]

Answer:

the correct answer is option ( B )

5 0
2 years ago
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