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ad-work [718]
3 years ago
13

Please please help !!

Biology
1 answer:
ira [324]3 years ago
7 0

Answer:

this a test

Explanation:

Im  not going to answer learn by yourself

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Which of the following increases the strength of the hydrophobic interactions in lipid bilayers, and thus makes them less permea
jenyasd209 [6]

Answer:

Option (C).

Explanation:

The plasma membrane of the eukaryotes are made of the phospholipid bilayer and the proteins are embedded or span the membrane bilayer. The carbohydrates are attached in moieties with the protein and lipid.

The fluidity of the membrane depends on the saturation, cholestrol and the hydrocarbon chains. The hydrocarbon chain is non polar in nature that allows the diffusion of non polar solutes across the membrane. This decreases the permeability of the polar molecules and the hydrophobic interactions in the membrane.

Thus, the correct answer is option (C).

4 0
3 years ago
Select all that apply.
stira [4]

Answer:

The correct answers would be maintain chromosome number through generations  and cause genetic variations by recombination.

In Meiosis a cell divides into four daughter cells all of which have half the number of chromosomes present in a parent cell.

It helps in the formation of gametes in sexually reproducing organisms.

These gametes (one from father and one from mother) fuse together to form a zygote. It re-established the chromosomal number as that of the parent.

In absence of meiosis, the chromosomal number would have doubled after each generation.

In addition, the meiosis also increases the genetic variation among the population with the help of crossing over which occurs during the pachytene stage of prophase I.

During this event, genetic information is exchanged between the non-sister chromatids of the homologous chromosomes. It produces a new combinations of genes that are different from either parent.

7 0
3 years ago
Read 2 more answers
At which position is the southern hemisphere experiencing spring?
SVEN [57.7K]
(Position C ) September
8 0
3 years ago
Read 2 more answers
The purity of cocaine in crack averages about __________.
AnnyKZ [126]
<span>This averages about 75 percent. This type of cocaine is a free base cocaine and is smoked. The high that it gives to the smokers is short but intense. It is also known as the most addictive form of cocaine.</span>
6 0
3 years ago
In a sample population of people, 36% have the recessive trait of "free" earlobes (q2). What is the frequency of the dominant al
ICE Princess25 [194]

Answer:

Explanation

Given that 36% are recessive in traits

100-36 = 64% for dominant traits considering a whole population to be 100%

P=dominant allele

q= recessive allele

P2= dominant genotype

q2= recessive genotype

according to hardyweinberg principle, p+q=1

64/100= 0.64 frequency for dominant traits or genotype, therefore

p2=0.64

then

P=√0.64

p= 0.8

Therefore, dominant allele frequency (p) for the population is 0.8

4 0
3 years ago
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