1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
son4ous [18]
3 years ago
6

Explain the genotypes and phenotypes of skin color. summarize the relationship between the number of active genes and color of t

he skin.
Biology
2 answers:
Kruka [31]3 years ago
8 0
<span>Human skin color is a polygenic trait, which means that multiple gene loci (with different alleles) are involved in its expression. It has been shown that there more than 350 genetic loci involved in determining skin color. Because of that, there is the enormous number of possible genotypes for the skin color and as a result, the phenotypes vary from the darkest brown to the lightest hues.</span> <span> Different populations have different allele frequencies of genes for human skin color, and the combination of these allele variations brings about complex and continuous variation in skin coloration. Natural skin color can change due to exposure to sunlight (becomes darker) and that is the way it adapts to intense sunlight irradiation (protection against the UV exposure).</span>
emmainna [20.7K]3 years ago
6 0
The inheritance of skin color genes is polygenic, meaning that many different genes are inherited and none are dominant, but rather they all work together to create a special blend of genes that you have. This is also influenced by environmental factors such as exposure to sun and similar.
You might be interested in
How does the composition and structure of the atmosphere ensure the protection of the earth
Anika [276]
This is only one part of the answer, but its important: high-altitude O2 absorbs much energy from the sun (including radioactivity), which forms the ozone layer. this process protects delicate molecules important to life - most notably dna
3 0
3 years ago
How is E. coli like a paramecium
neonofarm [45]
B. they are both unicellular
8 0
3 years ago
Read 2 more answers
How do you find and estimate longitude and latitude on a map?
masha68 [24]
Understand latitude. latitude measures how a point is north or south of the equator. now understand longitude, longitude measures how far a point is easy or west of the prime meridian. understand how they appear on a map. now, i’m not the best at helping or explaining, so if this doesn’t help... then hopefully someone else answers for you.
5 0
3 years ago
Read 2 more answers
Why does a pea plant with the genotype Rr produce some gametes that have the allele for round seeds?
Amiraneli [1.4K]

Answer:

The correct answer is - due to the law of segregation.

Explanation:

In the given case the genotype of Rr and as we know R is a dominant characteristic for round seeds and r represents the recessive allele for wrinkled seeds in a pea plant. So if a plant has Rr in its genotype it means it is a phenotypically round pea plant due to dominance in this heterozygous case.

The law of segregation states that two alleles of a gene of a specific trait will be distributed randomly and there is an equal chance of each allele to end up in the gametes, similarly in this case both alleles can be segregated to gametes and it is a random process.

3 0
3 years ago
Which antibiotic would you use to determine if the recombinant dna was taken in?
Brrunno [24]
Antibiotic used include kenamycin, ampicillin and tetracycline. This is useful to determine if and which bacteria took up the plasmid as they were supposed to during the process of recombination. Host bacteria are normally killed by these antibiotics. If the recombinant plasmids were taken up by the bacteria, plasmid may have contained a DNA gene for resisting the effects of one or more antibiotics. Host bacteria are placed in a growth medium containing an antibiotic to which they have a resistant gene in their recombinant plasmid DNA survivor. If they havent taken the plasmid they die.
6 0
3 years ago
Other questions:
  • For a DNA strand that contains the sequence AGT in the 5’ to 3’ direction, what nucleotides are found on the other DNA strand in
    10·1 answer
  • How is radioactive decay used to date sedimentary rocks?
    8·2 answers
  • I'm taking online classes I need to know, <br> what is chemistry?
    11·2 answers
  • For aerobic respiration, a variety of substances must be in a state of flux across the inner mitochondrial membrane. Assuming a
    6·1 answer
  • Earth's 24-hour rotation rate is one of thing that makes our planet so friendly to life, allowing most parts of Earth to stay a
    6·2 answers
  • what is the process wherea plant can use a chemical processusing the sunlight and changing CO2 and water into oxygen
    6·1 answer
  • What is an important effect of mars low temperature and low air pressure
    13·2 answers
  • Sister chromatids separate from each other and are pulled to opposite sides of the cell in Meiosis I during:
    8·2 answers
  • List and describe the 3 roles of DNA
    13·1 answer
  • How are nonmetals identified?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!