Answer:
<em>CHARACTERÍSTICAS </em><em> </em><em>DE </em><em>LOS </em><em>BIOELEMENTOS:</em>
<em>*</em><em>Masa </em><em>molecular </em><em>pequeña:</em><em> </em><em>esto </em><em>les </em><em>permite</em><em> </em><em>compartir </em><em>electones </em><em>de </em><em>su </em><em>capa </em><em>externa </em><em>y</em><em> </em><em>formar</em><em> </em><em>enlaces</em><em> </em><em>covalentes</em><em> </em><em>estables</em><em>.</em>
<em>*</em><em>Polaridad:</em><em> </em><em>muchas </em><em>veces </em><em>la </em><em>tienen </em><em>los </em><em>compuestos </em><em>formados.</em><em> </em><em>.</em><em>.</em><em>.</em>
<em>*</em><em>El </em><em>carbono </em><em>comparte </em><em>cuarto </em><em>electrones </em><em>formado </em><em>cuarto </em><em>enlaces</em><em> </em><em>covalentes</em><em> </em><em>muy </em><em>estable.</em>
Answer:
0.25%
Explanation:
20 people start the new population. So there are 20 genes or 40 alleles for the recessive disorder phenylketonuria. 2 out of 40 alleles are recessive for the condition hence frequency of the allele = 2/40 = 0.05
Frequency of the allele does not change when the population increases so it is in Hardy-Weinberg equilibrium. According to it, if q is the frequency of recessive allele, q² = frequency of the recessive condition
Here, q = 0.05 So,
q² = (0.05)² = 0.0025
In percentage, it is 100 * 0.0025 = 0.25%
Hence, incidence of phenylketonuria in the new population is 0.25%
c. Birth rates are high
Explanation:
A wide base in the population pyramid shows that there is a large population of young people with high fertility rate or birth rate and high death rate.
From the graph, it can also be concluded that narrow tip at the top shows that lesser older people are in the population.
This pyramid shown in the diagram is a triangular age pyramid. In this type of pyramid the pre-reproductive individuals are high reproductive individual are moderate and non-reproducing individual is less. In such pyramid we find population grows.
Suppose in a family of ten 6 are pre-reproductive, 2 moderate reproductive and 2 post-reproductive. We will see the in the course of moderate and post-reproductive will die and those six of pre-reproducing age will increase the population.
You need to give context to this question..... or a picture.....
Answer:
The allele frequency changed
The light moths blended in with the light-colored trees. However, the Industrial Revolution changed the tree colors. After the pollution from the Industrial Revolution started affecting trees, most of the collected peppered moths were of the dark form.
