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larisa [96]
3 years ago
15

Several biology students are counting kernels in an ear of corn. They count a

Biology
2 answers:
Yanka [14]3 years ago
7 0

Answer:

9:3:3:1

Explanation:

There are 420 kernels, over half of these are purple wrinkled (242/420=0.576) one fifth are purple smooth (84/420=0.2), just under one fifth are yellow wrinkled (70/420=0.167), and just over one twentieth are yellow smooth (24/420 = 0.057).

The ratio is 0.567: 0.2: 0.167: 0.057

0.567/0.057 = 9.9, so the ratio of purple wrinkled to yellow smooth is around 9:1.

0.567/0.2 = 2.835 and 0.567/0.167 = 3.39, so the ratio of purple wrinkled to purple smooth and yellow wrinkled is approx 3:1

0.2/0.057 = 3.5 and 0.167/0.057 = 2.92, so the ratio of purple smooth and yellow wrinkled to yellow smooth is approx 3:1

Therefore, the ratio is approximately 9:3:3:1.

This is a classic Mendelian ratio for a independent assortment associated with a dihybrid cross.

musickatia [10]3 years ago
5 0

Answer:

Easy its 9:3:3:1 PLS LIKE

Explanation:

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The word root infect means which of the following?
anyanavicka [17]

Answer:

late 14c., "fill with disease, render pestilential; pollute, contaminate; to corrupt morally," from Latin infectus, past participle of inficere "to stain, tinge, dye," also "to corrupt, stain, spoil," literally "to put in to, dip into," from in- "in" (from PIE root *en "in") + facere "to make, do, perform" (from PIE root *dhe- "to set, put").

Explanation:

8 0
3 years ago
What two processes must take place in order to go from a gene to a protein?
yanalaym [24]

Most genes contain the information needed to make functional molecules called proteins. (A few genes produce other molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell. It consists of two major steps: transcription and translation. Together, transcription and translation are known as gene expression.

During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus. Both RNA and DNA are made up of a chain of nucleotide bases, but they have slightly different chemical properties. The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.

Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm. The mRNA interacts with a specialized complex called a ribosome, which "reads" the sequence of mRNA bases. Each sequence of three bases, called a codon, usually codes for one particular amino acid. (Amino acids are the building blocks of proteins.) A type of RNA called transfer RNA (tRNA) assembles the protein, one amino acid at a time. Protein assembly continues until the ribosome encounters a “stop” codon (a sequence of three bases that does not code for an amino acid).

The flow of information from DNA to RNA to proteins is one of the fundamental principles of molecular biology. It is so important that it is sometimes called the “central dogma.”

Through the processes of transcription and translation, information from genes is used to make proteins.

5 0
3 years ago
What organism reproduces by cell division rather than meiosis?
sladkih [1.3K]
Bacteria reproduces by cell division rather than meiosis.
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3 years ago
Read 2 more answers
Which of the following genotypes indicates a homozygous dominant trait?
irakobra [83]
The genotypes that indicates a homozygous dominant trait is : B. TT

Homozygous :  both alleles must be the same, so it eliminate option A.
Dominant trait : One of the allele must be written in Capital letter, so it eliminate option C.

this leaves option B, as the answer

hope this helps
7 0
3 years ago
List two diseases that are spread by insects and caused by protists, and name the protist that causes each disease.
Bad White [126]

Answer:

Malaria is a protist disease spread by mosquitos the protist who causes Malaria is called the Plasmodium parasite. Another disease is sleeping sickness spread by the tsetse fly the protist is caused by Trypanosoma brucei

Explanation:

6 0
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