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svet-max [94.6K]
3 years ago
5

Hair is produced at the base of hair follicles from columns of cells that die when they are filled with keratin.

Biology
1 answer:
Lilit [14]3 years ago
4 0
False, then the second one the answer is sweat glands
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What information about recombination frequencies enables scientists to create linkage maps?
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The answer is;

  1. The recombination frequency is proportional to the distance between the two genes
  2. The lower the recombination frequency, the farther apart two genes are on the chromosome

Genes that are close together are more likely to be passed together to offspring during recombination. Geneticist compares the ration between the proposed phenotype offspring and actual phenotype offerings in a population. The higher the recombination frequency (centimorgans," or cM), the closer the genes are linked together, physically.

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What group is this in
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According to scientists which type of organism formed by endosymbiosis?
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In ducks, the trait for normal feathers is dominant to the trait for silky feathers. If
vesna_86 [32]

Answer: The genotype ratio is 2Ff : 2ff

The phenotype ratio is two normal feathered birds to two silky feathered birds.

Explanation: Let F represent the gene for normal feather and f represent the gene for silky feather. F is dominant while f is recessive, therefore a male that is hybrid for trait of normal feather is heterozygous and will have a genotype of Ff, a female that is homozygous for silky feather will have a genotype of ff.

A cross between Ff and ff will yield 2Ff birds and 2ff birds. Since F is dominant, a bird having genotype of Ff will manifest outwardly as blue feathered birds while ff will manifest outwardly as silky feathered birds because f is recessive and must occur in a homozygous condition in order to manifest phenotypically. Therefore, the genotype ratio is 2Ff: 2ff.

See the punnett square attached for more information

5 0
3 years ago
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