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Jobisdone [24]
3 years ago
15

What does it mean if there are two different alleles for a trait ?

Biology
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

The trait is heterozygous.

Explanation:

Heterozygous: "Having two different alleles of a particular gene or genes."

A heterozygous genotype looks like: Rr. The capital R is a dominant allele, and the lowercase r is a recessive allele. These two alleles are not the same (not two dominant alleles or two recessive alleles) meaning that the trait is a heterozygous trait.

The opposite of a heterozygous trait is a homozygous trait, in which both alleles are the same (both dominant or both recessive) and can look like RR or rr (genotype-wise).

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Vera_Pavlovna [14]

all ik is its not c

Explanation:

not ccccc

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devlian [24]
The soil would be bad and the plants need nitrogen or it wont grow

3 0
3 years ago
Organisms with the genotypes aabbccdd and aabbccdd are crossed. What are the expected proportions of the following progeny?
Dvinal [7]

Answer:

a) \frac{27}{64}

b)\frac{1}{32}

c) \frac{27}{64}

d) \frac{3}{64}

Explanation:

The correct question is

Organisms with the genotypes AABbCcDd and AaBbCcDd are crossed. What are the expected proportions of the following progeny?

a. A_B_C_D_

b. AabbCcDd

c. a phenotype identical to either parent

d. A_B_ccdd

Solution

In such question the probability for each allele pair is to be determines separately

For instance,

AA * Aa will produce AA, Aa, AA, Aa this means that all the the probability of getting both AA and Aa is \frac{1}{2}

Like wise when Bb and Bb are crossed, BB, Bb, Bb, and bb are produced. So the probability of getting dominant trait i.e BB or Bb is \frac{3}{4} and recessive trait i.e bb is \frac{1}{4}

Chance to get homozygous bb only or BB only is \frac{1}{4}

and chance of getting Bb is  \frac{1}{2}

Like Bb and Bb cross, the same will be the probabilities for Cc and Cc cross and Dd and Dd cross

Part A)

\frac{1}{4} * \frac{3}{4} * \frac{3}{4} * \frac{3}{4} \\= \frac{27}{64}

Part B)

\frac{1}{4} * \frac{1}{2} *  \frac{1}{2}*  \frac{1}{2}\\=  \frac{1}{32}

Part C)

\frac{1}{4} * \frac{3}{4} * \frac{3}{4} * \frac{3}{4} \\= \frac{27}{64}

Part D)

\frac{3}{4} * \frac{1}{4} * \frac{1}{4} * \frac{1}{4} \\= \frac{3}{64}

5 0
3 years ago
What are the primary decomposers select all that apply
AfilCa [17]

Answer:

→ <u><em>Bacteria</em></u>

→ <u><em>Fungi</em></u>

Explanation:

The options that your talking about are:

Plants

Animals

Bacteria

Fungi

Tree (Is this one of your options? I'm not sure because I had this as one of my options.)

Hope this helped! :^)

⭐Brainliest will be appreciated!⭐

✉️Message me if you have any more questions!✉️

- ✨<u><em>7272033Alt</em></u>✨

Submitted on 4/13/2022 at 2:35 PM (To avoid plagarism, by users whom decide to copy.)

7 0
2 years ago
Which is a primary difference between all prokaryotes and eukaryotic cells?
padilas [110]

Answer:

Prokaryotes are the most primitive organism that exists on earth. They have the simplest form of body organization and they do not perform complex tasks.

The eukaryotic cell has nucleus in it and they have more complex machinery in their body to perform various tasks accordingly.

The nucleus of the prokaryotes are not enclosed in the nuclear membrane and it is dissolve in the cytoplasm. It lacks true nucleus.

Eukaryotes have nucleus enclosed inside nuclear membrane.

4 0
3 years ago
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