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Sever21 [200]
4 years ago
5

What is a solution in biology? Biology​

Biology
2 answers:
Bezzdna [24]4 years ago
7 0
A mixture of two or more substances in which molecules of the substances are evenly distributed

Hope this helps
alexandr402 [8]4 years ago
3 0

From Biology-Online Dictionary | Biology-Online Dictionary. Definition. noun, plural: solutions. (chemistry) A type of homogenous mixture in which the particles of one or more substances (the solute) are distributed uniformly throughout another substance (the solvent)

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Which situation would lead the client's family to suspect onset of dementia?
aksik [14]
The client has increasing experienced disorientaion to familiar surroundings
8 0
3 years ago
Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the
Varvara68 [4.7K]

Answer:

.45 from mom, .05 from dad

Explanation:

Given that:

the mother's genotype is AZ/az

i.e AZ = 50%

az = 50%     (parental)

But  we  were also told that the recombination rate is 10% which will like wise affect the mother's genotype

So 100% -10% = 90 % of the mother's genotype

We have a new genotype

AZ = 45%

az = 45% (parental)

Therefore the probability of az gamete from the mother = \frac{45}{100}

= 0.45

Similarly; the genotype of the father is:  Az/aZ

This is an heterozygous father who is diploid hence, there is a remarkable presence of two copies of each autosomal chromosome.

Az is the allele of the genes in one chromosomes and aZ is the allele of the genes in the other.

The gametes of this self cross are: Aa, AZ, az, zZ

Therefore; the recombinants are:

AZ

az

Since there are 10% recombinant; then

AZ = 5%

az = 5%

Therefore the probability of az gamete from the father = \frac{5}{100}

= .05

4 0
4 years ago
List three reasons animals move from place to place (this is a stupid question but I unfortunately need a scientific answer)
olga_2 [115]
Animals move from place to place because -

1)in search of food and shelter.
2)to <span>protect themselves against adverse climatic conditions.
3)to protect themselves </span><span>from enemies and their predators
</span>4)to find suitable partners for <span>reproduction.

Animals migrate to reproduce, eat, or seek warmer climates.</span>

6 0
4 years ago
How are pedigrees identified?
Mila [183]
Pedigree is identified as a family tree of genetics.
4 0
3 years ago
For the following question, match the key event of meiosis with the stages listed below.I. Prophase I V. Prophase IIII. Metaphas
Airida [17]

Answer:

B (Metaphase I)

Explanation:

Meiosis is one of the two types of cell divisions that results in 4 daughter cells (gametes) with each having half the number of chromosomes as the parent cell. During meiosis, cell division occurs twice because before the separation of two halves of a duplicated chromosome called sister chromatids, there still need to be separation of homologous pairs, which is a similar but non-identical pair of chromosome received from both parents. Hence, meiosis occurs in a two step division process; meiosis I and meiosis II.

During Prophase I, which is the first stage of meiosis I, homologous chromosomes pair up side by side to form a structure called TETRAD or BIVALENT and likely undergo crossing over( when segments of homologous chromosomes get broken and refixed interchangeably).

After crossing over, the spindle fibres (from the centrosomes) begin to attach to the centromeres of each chromosomes and move them towards the center of the cell called METAPHASE PLATE. Hence, they become aligned on the equator towards either side of the pole. Each chromosome attaches to microtubules from one pole of the spindle and the two homologues of a pair bind to microtubules from opposite poles. Hence, in Metaphase I, homologous pairs, not individual chromosomes, line up at the Metaphase plate/equator for separation.

The orientation of the line up of homologous chromosomes determines which chromosomes enter into the same cell i.e. the alignment of chromosomes towards the same pole determines which chromosomes enter into the same cell to form the genetic composition of gametes. In an organism with two sets of chromosomes (diploid), there are four possible combinations in which chromosomes are arranged in the metaphase plate, resulting in differences in chromosomal distribution in daughter cells/gametes, the process of independent assortment

6 0
3 years ago
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