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kompoz [17]
3 years ago
12

if random chromosome alignment already shuffles chromosomes around so the eggs and sperm get a good mix of some “mom” alleles an

d some “dad” alleles, why do we even need to do crossing over
Biology
1 answer:
zimovet [89]3 years ago
8 0

Answer:

The correct answer is - to produce recombinant that leads to genetic variation.

Explanation:

Random shuffling or random alignment of the chromosome during gamete formation allows the formation of new allele combinations. In the crossing over the parts of the homologous chromosomes are switched between homologous and recombinants are formed that shows are genetic variation.

So, now they have different allele combinations and chromosome combinations as well. Random shuffling does not provide genetic variations as crossing over

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The mucous membrane that lines the eyelids and is reflected over the anterior surface of the eyeball is the conjunctiva is calle
lina2011 [118]

Answer:

its the conjunctivia......

Explanation:

8 0
3 years ago
Name three parts of a plant cell that are not found in animal cells/5752789/390f2d51?utm_source=registration
Ksivusya [100]
Vacuole, cell wall, and chloroplast. 
5 0
3 years ago
Suppose the volume of milk in a glass is 230 cubic cm. If 1 gallon of milk equals 3.79 liters, there are how many glasses of mil
balu736 [363]
Volume of milk that a glass can hold = 230 cubic cm
It is already given that
1 gallon of milk = 3.79 liters
W already know
1 liter = 1000 cubic cm
Then
3.79 liters = 1000 * 3.79 cubic cm
                = 3790 cubic cm
Now
Number of glasses needed to contain 230 cm^3 of milk = 1
So
<span>Number of glasses needed to contain 3790 cm^3 of milk = 3790/230
</span>                                                                                           = 16.48
From the above deduction, we can conclude that 17 glasses of milk are required to hold 1 gallon of milk.
4 0
3 years ago
A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the
Xelga [282]

Answer:

See the answer below

Explanation:

The question that can be answered with the F2 cross would be <u>if the yellow flower color is dominant over the red flower color in the species</u>. In other words, <u>whether the inheritance of flower color follows a simple Mendelian inheritance or otherwise can be answered.</u>

<em>Assuming that the inheritance of the flower color follows the Mendelian pattern, the red flower trait would re-emerge among the F2 offspring and the ratio of yellow to red flower offspring would approximately be equal to</em><em> 3:1.</em><em> Otherwise, a more complex pattern of inheritance would be involved.</em>

5 0
3 years ago
My is the bass
wlad13 [49]

Answer: Relevance

The scope of abiotic and biotic factors spans across the entire biosphere, or global sum

of all ecosystems. Such factors can have relevance for an individual within a species,

its community or an entire population. For instance, disease is a biotic factor affecting

the survival of an individual and its community. Temperature is an abiotic factor with the

same relevance.

Some factors have greater relevance for an entire ecosystem. Abiotic and biotic factors

combine to create a system or, more precisely, an ecosystem, meaning a community of

living and nonliving things considered as a unit. In this case, abiotic factors span as far

as the pH of the soil and water, types of nutrients available and even the length of the

day. Biotic factors such as the presence of autotrophs or self-nourishing organisms

such as plants, and the diversity of consumers also affect an entire ecosystem.

Influencing Factors

Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting

factors restrict the growth of populations. They help determine the types and numbers

of organisms able to exist within an environment.

Biotic factors are living things that directly or indirectly affect organisms within an

environment. This includes the organisms themselves, other organisms, interactions

between living organisms and even their waste. Other biotic factors include parasitism,

disease, and predation (the act of one anim

Explanation:

5 0
3 years ago
Read 2 more answers
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