The condition measured in an experiment that results from changing conditions in the independent variable is

A water molecule has to pass through various organelles of a plant cell before reaching the nucleus. List in order the path that

Salsk061 [2.6K]

Answer:

cell wall, cell membrane, cytoplasm, vacuole, ER and nucleous

Explanation:

6 0

2 years ago

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Gene A has two alleles (A1 and A2). A1A1 homozygotes are twice as likely to survive from birth to reproductive age as heterozygo

Usimov [2.4K]

Answer:

The correct answer is C: 0.60 A1 and 0.40 A2 will be the allele frequencies in those progeny when they reach reproductive age

Explanation:

Genotype A1A1  A1A2 A2A2 

Relative aptitude, w 1 0.5 0.5

Number of individuals 40 40 40

Initial allelic frequency p0= (40+20)/120=0.5 q0= (40+20)/120=0.5

Zygote frequency p2= 0.25 2pq=0.25 q2=0.625

Relative contribution 0.25x1=0.25 0.5x0.5=0.25 0.25x0.5=0.125

of each genotype

Average aptitude W W= 0.025 + 0.25 + 0.125 = 0.625

Population AA= 0.25/0.625 AB=0.25/0.625 BB=0.125/0.625

Genotype frequency AA= 0.4 AB=0.4 BB=0.2

New Allelic frequency p1=0.4+(0.4/2)=0.6 q1=0.2+(0.4/2)=0.4

Total number of individuals: 120

Initial allelic frequency:

(number of homozygote individuals + half number of

heterozygote individuals) / Total number of individuals

Relative contribution of each genotype:

Zygote frequency x Relative aptitude

Average aptitude W: It is the sum of relative contribution of each genotype to the next generation.

wA1A1 x p2 + WA1A2 x 2 x p x q + WA2A2 x q2

Population Genotype frequency:

Relative contribution of each genotype / Average aptitude

Allelic frequency:

Homozygote population genotype frequency + half

heterozygote population genotype frequency

8 0

2 years ago

Bacteria are the simplest single cells that _____.

leonid [27]

Bacteria are the simplest single cells that carry out all basic life activities.

Hope this helps!

Have a great day! :D

☆ Dont forget to mark brainliest ☆

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When voltage-gated sodium ion channels are inactivated, the neuron is _________________. in the absolute refractory period below

Ymorist [56]

Answer:

depolarizing

Explanation:

According to my research on studies by different medical professionals, I can say that based on the information provided within the question the neuron is depolarizing. This is what happens when voltage-gated sodium ion channels are inactivated causing an increas in the neuron's membrane conductance for sodium ions.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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2 years ago

James is making models of plant and animal cells using objects supplied by his teacher to represent organelles. For one cell, he

uysha [10]

He is making a plant cell since the cell walls are box shaped, the balloon would be the large vacuole which takes up a lot of space in the cell, the marbles would be the ribosomes.

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2 years ago

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