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Leto [7]
3 years ago
10

Which sample is a pure substance?

Biology
2 answers:
Flauer [41]3 years ago
6 0

Answer:

zinc oxide

Explanation:

dmitriy555 [2]3 years ago
3 0

Answer:

zinc oxide is a pure substance

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In humans, six fingers (f) is the dominant trait; five fingers (f) is the recessive trait. if the father is heterozygous for six
rodikova [14]

The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.

<h3>How to calculate genotype of a cross?</h3>

According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.

If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:

  • Ff
  • Ff
  • ff
  • ff

This shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%).

Learn more about genotype at: brainly.com/question/12116830

#SPJ1

3 0
2 years ago
What will happen if external factors affect cell division in a group of cells placed in a culture dish? A) Anchorage dependence
irakobra [83]

Answer:

option B is correct

Explanation:

the effect of external physical factor on cell division is clearly seen on in density dependent inhibition( a phenomenon in which crowded cell  stop dividing)

6 0
3 years ago
Which of the following could be a nucleotide of DNA?
dsp73
A) Deoxyribose + phosphate group + thymine
8 0
3 years ago
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What could be a cause of melanoma?
Alik [6]
<span>Causes Of Melanoma. Ultraviolet rays Most skin cancers are caused by too much exposure to the sun's ultraviolet (UV) rays. The two types of UV rays that cause melanoma are UV-A and UV-B rays.</span>
5 0
3 years ago
Consider the diagram. mc002-1.jpg Which process is represented? nondisjunction translocation inversion insertion
sladkih [1.3K]

If this is the picture you are talking about, the right answer is non-disjunction

Non-disjunction is the non-separation of homologous chromosomes at the time of cell division which results in the formation of ova or spermatozoa leading to an abnormality in the number of chromosomes of the egg thus fertilized by the spermatozoa.

The fertilized egg consists of either a single chromosome, what is called monosomy, or, conversely, three chromosomes, this is called trisomy. While naturally, the fertilized egg has a single pair of chromosomes.

7 0
3 years ago
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