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horsena [70]
2 years ago
8

Which statement is true about human population today?

Biology
1 answer:
RideAnS [48]2 years ago
8 0

Explanation:

C) The time required to double the population is going down.

hope it is helpful to you

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Match the following terms and definitions. 1.breeding of individuals that have genes for two different characteristics codominan
Luden [163]
<span>Answers;
1.Breeding of individuals that have genes for two different characteristics; Dihybrid cross
2.A grid system used to predict possible combinations of genes due to random fertilization; Punnet square
3 A condition in which both alleles are dominant; Codominance
4.when more than two alternatives exist for a gene; multiple alleles
5.A condition in which neither pair of alleles is dominant or recessive, so the traits blend in the phenotype ;Incomplete dominance;

Explanation;
</span>Dihybrid cross;
<span>It involves the breeding of individuals that have genes for two different characteristics. It involves the cross of individuals that are both heterozygous for two different traits. For example two different traits in a pea plant; color and shape; for color we have; Y-allele for yellow seeds and y- allele for green seeds, For Shape trait; R-allele for round seeds and r-allele for wrinkled seeds. So the dihydbrid cross would be (RrYy </span>× RrYy). 
<span>
Punnet square;

</span><span>This a grid system or a square diagram that is used to predict possible combinations of genes due to random fertilization. It is used by biologists determine the probability of an offspring having a particular genotype. 
</span><span>The letters on the outside of a Punnett Square stand for the parent allele.
</span>
Codominance
;
<span>This is a condition in heterozygotes in which both members of an allelic pair are dominant and both contribute to the phenotype. 
A good example of codominance is the ABO blood group; A person with blood group AB, it means that both the A allele and B allele are equally expressed. 

Multiple alleles

</span><span>This is when more than two alternatives for a gene exist.
Examples of multiple allelism in human;The genes of the ABO blood group system. The human ABO system is controled by three alleles, namely; A-allele, B-allele and O-allele.

Incomplete dominance;
</span><span>This is condition in heterozygotes in which both members of an allelic pair are neither dominant nor recessive to other alleles, so the two traits blend in the phenotype of the individual. 
An example; is a snapdragon flower that is pink as a result of cross-pollination between a red flower and a white flower. Which means neither the white allele or the red allele are dominant. </span>
7 0
3 years ago
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What would happen when an artificial K+ channel is inserted into an axon membrane at resting potential?Answer questions 1-4 by s
kap26 [50]

Answer:

<h2>K+ movement will be closed or blocked because the outside is more positive charged and K+ is a positive particle.</h2>

Explanation:

Resting potential of a neuron cell is a type of condition in which the neuron lives in rest that means there is no transmission of the impulse takes place. Such type of the condition occurs due to more negative charges inside the cell and more positive charges outside the cell. During this condition potassium ions are in higher condition inside the neuron and the concentration of sodium ions are high at outside of the neuron.

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3 years ago
The body fluid of sharks has a much lower concentration of sodium chloride than that of the surrounding seawater, and yet they a
enyata [817]
A. Sharks store enough urea to match the total solute concentration of the surrounding seawater
4 0
2 years ago
The production and consumption of atp during photosynthesis and cellular respiration. be detailed in where atp is made, and wher
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Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide in the process of respiration, which is then used in photosynthesis. While water is broken down to form oxygen in photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.  ATP is manufactured as a result of several processes including fermentation, respiration and photosynthesis.
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3 years ago
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Based upon the data for the other locations (ex. Tulle Well or Christmas Pass etc.) What color mice would you predict would be m
denis23 [38]

Answer:

without the graph presenting the data you can't really answer this but I assume since o Neil pass has a green environment the mice would be brown to match the ground

5 0
3 years ago
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