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Rama09 [41]
3 years ago
15

Imagine a diploid cell with the genotype AaBb, and assume that the A and B genes assort independently. If this cell undergoes me

iosis, how many different genotypes could the resulting haploid cells have?
Biology
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

4 genotypically different gametes

Explanation:

Mendel's law of independent assortment of genes states that the alleles of two or more different genes get sorted into gametes independent of one another i.e. the allele a gamete receives for one gene does not affect the allele received for another gene.

In this case, a F1 generation has resulted from the cross between a homozygous dominant parent (AABB) and a homozygous recessive parent (aabb). This F1 generation (AaBb) is said to be a dihybrid because it contains an heterozygous allele for two different genes.

The dihybrid undergoes meiosis and results into four genotypically different types of haploid gametes (sperm and eggs) with equal frequency i.e. if each gamete randomly got an A or a allele and in a separate process, also randomly got a B or b allele.

The four possible combinations of haploid gametes are: AB, Ab, aB, and ab

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Which of the following best describes the principle of independent<br> assortment?
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Answer:

Law that states that the segregation of any pair of alleles is independent of any other pair of alleles . As a result each pair of gametes receives one member of every pair of alleles.no influences from other alleles is necessary.

Explanation:

3 0
3 years ago
After researching the possible effects of music, Elaina proposes that if people listen to faster-paced music, their pulse rates
Angelina_Jolie [31]

Answer:

Constant variables

Explanation:

Elaina's investigation lacked the critical ingredient of constant variables which are important components of every scientific investigation. In every research, there are 3 important variables, namely:

1. Dependent variables: the actual variable to be measured during the course of investigations and whose values are dependent on another variable (independent variable) supplied by the investigators.

2. Independent variable: one of the variables that are supplied by investigators whose values are often manipulated to see the kind of changes it will cause to the dependent variable.

3. Constant variables: other variables that are neither independent nor dependent but constant for all the various experimental groups in investigations.

5 0
2 years ago
How long does it take for a package to come from uk to arizona?
Sunny_sXe [5.5K]
It depends most packages take 2-3 weeks so I’m guessing about 4 or 5?
4 0
3 years ago
In the hypothesis that C. stellatus (a species of barnacle) is competitively excluded from the lower intertidal zone by B. balan
lord [1]
<h2>Competitive exclusion principle.</h2>

Explanation:

The fundamental and realized niches of B. balanoides are identical, but the fundamental and realized niches of C. stellatus are different.

All the possible combination of resources and condition under which a species can grow, survive and reproduce is called its fundamental niche. Whereas, the more limited set of resources and condition under which a species can grow, survive and reproduce in the presence of competitors and predators is termed as its realized niche.

Competitive exclusion principle states that if two competing species coexist in a stable, homogeneous environment, then they do so as a result of differentiation in their realized niche.

<em>B. balanoides</em> can use a wider range of resources than<em> C. stellatus </em>because its fundamental and realized niches are identical . Hence thrives to exclude C.stellatus.

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harkovskaia [24]

Answer:

That cells are not the building block of life

Explanation:

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