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choli [55]
3 years ago
6

What combination of alleles could produce a trait controlled by a recessive allele?

Biology
2 answers:
monitta3 years ago
6 0
So you have dominant alleles that are represented by capitals and recessive represented by lowercase, we'll just use B and b in this example. Genes are expressed from combination of 2 alleles that are either BB, Bb, or bb, when there's at least 1 dominant (capital) then the dominant trait is expressed, and only if there are 2 recessive is the recessive trait expressed.
so it would only be 2 recessive alleles.
Dvinal [7]3 years ago
3 0
I don't know. But alleles is one or more alternative form of a gene, and recessive allele is two genetic genes that the offspring inherited from both parents.
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Serious disease syndromes are associated with trisomy of chromosome 21 (Down syndrome), 18 (Edwards syndrome) and 13 (Patau synd
goblinko [34]

Answer:

C: disease symptoms with varying severity based on genetic background

Explanation:

The chromosomes are composed of two under normal conditions but a genetic disorder in which a person has three copies of a chromosome instead of two is trisomy of the chromosomes and it will definitely lead to a disease syndromes.

4 0
3 years ago
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In small groups – as opposed to large ones – individuals are
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Considering the choices; 
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Answer; C
In small groups as opposed to large ones, individuals are less likely to take more than their equal share. 

Explanation;
According to the Ringelmann Effect, the tendency for individual members to become less productive increases as the size of a group increases.  If individuals are more then it means more chaos, communication, more bureaucracy and more of everything, that will slow down things. 
5 0
3 years ago
At a basic level mitosis and meiosis are similar processes. However, they have very different outcomes. Which of the following s
Dafna1 [17]

Answer: C. Homologous chromosomes are separated in meiosis but not in mitosis.

Explanation: There are two main types of division that take place in eukaryotic cells, mitosis, and meiosis. Mitosis is the type of division that is used for growth, repair, and replacement of tissues. Therefore it is not necessary that the cells have  different chromosome numbers or are varied genetically in the daughter cells in the case of mitosis.

Meiosis is the division that takes place to form the gametes for sexual reproduction. It is important in the first stages of meiosis I, to introduce variation and to halve the chromosome number.

Chromosomes numbers are halved (from 46 to 23) during meiosis I because the gametes (sperm and egg) come together and fuse during fertilization to form a zygote. When this fusion occurs (23 from the zygote and 23 from the egg), the chromosome number needs to be returned to that of the parent cell (46).

<h2>Genetic variation is introduced during synapsis which only occurs in meiosis, not mitosis. Homologs exchange genetic information during crossing over of synapsis. Entire chromosomes also separate during meiosis I. </h2>

At the end of meiosis, four genetically unique cells are  produced with half the number of chromosomes as the parent cell (23 cromosomes) . After the process of mitosis is completed, two cells genetically identical to each pther are produced and have the same number of chromosomes as the parent cell (46 cromosomes).

Genetic variation is actually important because of changing environmental conditions.

6 0
4 years ago
What are you determining when you calculate volume
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The amount of space an object has

5 0
3 years ago
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Gekata [30.6K]

Energy is released to be used by a cell when a phosphate group is <u><em>Removed from ATP to form ADP.</em></u>

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