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3 years ago

Summarize the voting rights guaranteed by amendment fifteenth nineteenth. twenty-six

Biology

1 answer:

exis [7]3 years ago

8 0

Answer:

The Fifteenth Amendment gave the right to vote to former slaves and people of color. Well, the Nineteenth Amendment gave the right to vote to women, and the Twenty-third, Twenty-fourth, and Twenty-sixth amendments gave representation to the District of Columbia, outlaw poll taxes, and lowered the voting age to 18.

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Imagine that a couple is planning to have children. The male is heterozygous for tongue rolling and homozygous dominant for unat

Amiraneli [1.4K]

Answer:

F1 generation: RrUu, rrUU, rrUu, RrUU

25% : 25%: 25%: 25%

Ratios

genotype: 1: 1: 1: 1 ...(from punnet square)
phenotype: 1 : 1

Explanation:

Punnett squares are a diagrammatic way of deciding the characteristics of hybrid offspring created by crosses in genetic breeding. Parental genotypes and phenotypes are widely recognized, and all usually obey normal Mendelian ratios and inheritance.

Mendelian genetics focuses on the origin or heritability of characteristics. Such traits are packed into one's own gamete, acquired by themselves, and sometimes display superiority, where one's impact can mask those of another trait.

These are called the Law of Segregation, Independent assortment and Dominance respectively.

For this cross... Assuming:

Unattached lobes= dominant

Rolling tongue= dominant
Parent generation or P generation:

Gametes:

R → rolling dominant (R), non-rolling recessive (r)

U → unattached dominant (U), attached recessive (u)

P generation: RUrU× rUru

rolling, unattached × non-rolling, unattached

F1 generation: RrUu, rrUU, rrUu, RrUU

25% : 25%: 25%: 25%

Ratios

genotype: 1: 1: 1: 1 ...(from punnet square)
phenotype: 1 : 1

<em><u>Half the offspring have unattached lobes and can roll their tongues while the other half have unattached lobes and cannot roll their tongues...</u></em>

Each punnet cross is attached below

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3 years ago

The diagram below shows an ornithiscian dinosaur, an ancient bird called archaeopteryx, and the modern day bird.

Hatshy [7]

Answer: option A is the correct answer

Explanation:

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2 years ago

According to the computer model mode bye gilbert and kittel what will happen if world warm by 4'c

Gennadij [26K]

Answer:

The correct answer is - ice shelves will have at risk of collapse.

Explanation:

Ella Gilbert and Christoph Kittel at the University of Reading, UK, and the University of Liege, Belgium, respectively made a computer model for the effect on ice shelves by climate change.

They found that if the world warms by 4°C, the continent’s ice shelves, approximately 34% will have melted water on their surface, which is known as hydrofracturing and a sign that these ice shelves are at risk of collapse.

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3 years ago

Members of the Deinococcus genus present an interesting conundrum to scientists who try to classify them as either gram-positive

AURORKA [14]

Answer:

Explanation:

Bacteria can be classified traditionally into two broad categories according to their cell wall, which are Gram-positive bacteria and Gram-negitive bacteria.

Gram-positive bacteria are bacteria that produce a positive result when Gram stain test is performed. It takes up the crystal violet stain of the test, and then show a purple-coloured appearance when seen through an optical microscope. This is as a result of the thick "peptidoglycan" layer in the bacterial cell wall which retains the stain used in the cell after washing it away from the rest of the sample.

Gram-negative bacteria after the decolorization don't retain the violet stain,the outer membrane of gram-negative cells is degraded by the alcohol.The peptidoglycan layer is positioned and between the membrane and a bacterial outer membrane, causing them to take up the counterstain and made appear red or pink.

Therefore, Deinococcus is one genus of the bacterial phylum that have resistant to environmental hazards. They posses thick cell walls that give them Gram-positive stains, but they also posess second membrane that made them them closer in structure to Gram-negative bacteria, which present an interesting conundrum to scientists who try to classify them as either gram-positive or gram-negative.

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3 years ago

The Doppler effect indicates that the universe is expanding because_____

zimovet [89]

Your answer should be B

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3 years ago

Read 2 more answers

Summarize the voting rights guaranteed by amendment fifteenth nineteenth. twenty-six​

Summarize the voting rights guaranteed by amendment fifteenth nineteenth. twenty-six