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azamat
1 year ago
11

Spontaneous mutations occur most commonly as a result of _________________________ .

Biology
1 answer:
Ray Of Light [21]1 year ago
4 0
Errors during duplication, errors during recombination, the movement of genetic elements, and dna damage
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If two orange heliodors have a child, what is the probability their child would be red?
Stels [109]

Answer:

25% or 1/4

Explanation:

The gene for colour in Heliodors is controlled by two contrasting alleles that codes for Red (R) and Yellow (Y) colours. However, these two alleles exhibit incomplete dominance, which is a phenomenon whereby a combination of both alleles gives rise to a third intermediate phenotype that is a blending of the other two parental phenotypes. In this case, both colours gives rise to a heterozygous Orange coloration (RY) in Heliodors.

However, if two orange Heliodors (RY) are crossed, four possible offsprings will be produced with the genotypes: RR, RY, RY, YY. This shows a phenotypic ratio of 1 red: 2orange: 1yellow. Hence, the probability of having a child with red coloration is 1 out of 4 possible offsprings i.e. 1/4.

Expressing this in percentage, we have 1/4 × 100 = 25%.

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3 years ago
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2 years ago
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Vesnalui [34]
They are absorbed in the small intestine, but I am not 100% sure if it is in the beginning or the middle.
3 0
2 years ago
Define the biological term population
kicyunya [14]

Answer:

here is your answer

Explanation:

In biology, a population is a number of all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding

3 0
2 years ago
A diploid (2n) cell divides by meiosis, producing four daughter cells. Next, each daughter cell divides by mitosis, producing a
Debora [2.8K]

Answer:

Each granddaughter cell is haploid (n)

Explanation:

Meiosis in the parent cell with a "2n" chromosome number would produce a total of four daughter cells. Each of these daughter cells would have an "n" number of chromosomes as separation of homologous chromosomes to the opposite poles during anaphase-I reduces the chromosome number to half in the daughter cells. Also, the event of crossing over and random segregation of homologous chromosomes makes the daughter cells of meiosis genetically different from each other.

Each of these four cells enters mitosis and forms a total of eight cells. Since mitosis maintains the chromosome number, each of the eight cells would have an "n" number of chromosomes and would be haploid.

8 0
3 years ago
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