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garik1379 [7]
4 years ago
13

An organism is homozygous dominant for one trait and heterozygous for another. What is the probability of the organism producing

a gamete with one dominant allele and one recessive allele for these traits?
A.4 out of 4
B.1 out of 4
C.1 out of 2
D.2 out of 16
Biology
2 answers:
meriva4 years ago
8 0
The answer is C

It is easiest to envision why if you imagine the alleles in a 2x2 grid. The homozygous alleles outside the grid along the top, (BB), and the heterozygous ones along the left hand side, (Bb). If you take each allele to the two boxes aligned with it in the grid, you will be left with two BB combinations and two Bb combinations. This is a probability of 2 out of four or 1 out of 2 on the gamete produced being heterozygous.
adell [148]4 years ago
4 0

Answer:

C.1 out of 2

Explanation:

The probability of the organism producing a gamete with one dominant allele and one recessive allele for these trait is 2 out of 4 which can be further reduced to 1 out of 2.

For a cross between Homozygous and heterozygous individual we will get 2 homozygous and 2 hetrerozygous individual. The heterozygous individual has one homozygous allele and one heterozygous allele

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A nursing instructor is teaching students about skin structure. The instructor evaluates student knowledge of the Langerhans cel
Alexxandr [17]

Answer:

Their answer about the location or function of the cells.

Explanation:

Since there are no options to select as the answer, i will just try my best to list a couple of them.

Langerhans Cells are from the family of cells named "Dendritic Cells" because of their tree like shapes. They can be found on parts of our body that come into contact with foreign environments or particles, such as skin, on the inside of our mouth, nose and stomach etc.

The nursing instructor could evaluate the students' knowledge by asking them where Langerhans Cells are located in our body, on which layer of our skin they can be found or what their primary functions are.

I hope this answer helps.

4 0
3 years ago
Match each atom to the corresponding number of electrons it will steal or give away.
Stella [2.4K]

Answer:

1. Fluorine (7 electrons) => c. steals 1 electron

2. Calcium (2 electrons) => a. gives away 2 electrons

3. Oxygen (6 electrons) => d. steals 2 electrons

4. Lithium (1 electron) => e. gives away 1 electron

5. Xenon (8 electrons) => b. neither gives away nor steals any electron

Explanation:

Given the following valence electrons of the atoms listed above, each atom can be matched to its corresponding number of electrons it can steal or give away as they form bonds and attain a stable state:

1. Fluorine (7 electrons) => this will steal 1 electron from another atom to attain a stable state when it comes to make the number of electrons 8.

2. Calcium with 2 valence electrons, will give away this 2 electrons in its outer shell to be stable and form bond with another atom that will accept these 2 electrons.

3. Oxygen with 2 valence electrons, will steal 2 electrons to make the electrons in its outer shell 8, as it bonds with another atom to become stable.

4. Lithium will give away 1 electron to become stable when it combines.

5. Xenon with 8 electrons in its outer shell is in a stable state and kind of inert. It doesn't need to receive or steal any electron from or to any other atom in this state.

7 0
3 years ago
The g1 and g2 phases of the cell cycle are required for
Aleks [24]

answer: mitosis (M phase)

the cell grows in G1 and G2 stages of the cell cycle

6 0
3 years ago
What if I told you there were trillions of tiny bacteria all around you? It’s true. Microorganisms called bacteria were some of
Andru [333]
The main idea is that microorganisms are small and they live everywhere possible.
6 0
3 years ago
Read 2 more answers
Based on the information in the table, which of the following changes is least likely to produce a phenotypic
yaroslaw [1]

GAU to GAC​ is least likely to change phenotype of an organism.

<h3><u>Explanation</u>:</h3>

Phenotype of an organism is defined as the physical characteristics of an organism. This phenotype is dependent on the genotype of the organisms. This means the phenotypic characters are actually the expressions of the genes of the organisms. Now the genes are expressed in form of codons that are the three nitrogen base sequences. Each codon codes for a particular amino acid which in turn polymerises to from the protein which actually forms the phenotype of the organism.

Now there are 20 amino acids and 64 codons. Thus there are more than 1 codons for a single amino acid. So, if a codon is replaced by another codon which codes for same amino acid, then the phenotype is least likely to be affected.

Both the GAU and  GAC​ codes for aspartic acid. So the phenotype won't be affected much by this mutation

5 0
3 years ago
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