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3 years ago

Meiosis is... A) preserves chromosome number B) reduces chromosome number

Biology

1 answer:

nirvana33 [79]3 years ago

6 0

Answer: B)

Explanation: Meiosis is sexual reproduction. It is not asexual reproduction, due to this offspring's will receive half of the chromosomes from their mother and father. 23 from mother; 23from father. Total of 46

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What happens when the number of organisms in an environment is higher

Anastasy [175]

D is correct the population will increase

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3 years ago

Can a dog wag its tail without the tail in turn "wagging the dog"? (consider a dog with a relatively massive tail.)

Phoenix [80]

I don't think so, because for every action there is an equal and opposite reaction.
Hope this helps! :)

5 0

3 years ago

Suppose the human trait for hair type is controlled by a simple dominant and recessive relationship at one locus. Curly hair, C,

myrzilka [38]

Answer:

A) The frequency of the dominant allele, C $= 0.4376$

B) frequency of the heterozygous genotype, Cc $= 0.2461$

Explanation:

Given -

Curly hair, C, is the dominant allele, and straight hair, c, is the recessive allele

Number of students with curly hair is $37$

Thus frequency of genotype "CC"

$= q^{2} = \frac{37}{117} \\= 0.3162$

Thus, frequency of allele "q"

$= \sqrt{0.3162} \\= 0.5623$

As per Hardy Weinberg's first equation-

$p+q=1$

Substituting the value of q, we get -

$p+0.5623=1\\p= 0.4376$

As per Hardy Weinberg's second equation -

$p^2+q^2+2pq=1\\$

Substituting the values of "p" and "q" we get -

$0.4376^{2} + 0.3162+2pq = 1\\2pq = 0.2461\\$

Hence,

A) The frequency of the dominant allele, C $= 0.4376$

B) frequency of the heterozygous genotype, Cc $= 0.2461$

8 0

3 years ago

Read 2 more answers

What does finny insist must have made gene bounce the branch that day?

Alecsey [184]

The answer is blind impulse. This means the sudden and uncountable desire to do something. In the novel, Finny and gene have been each other's double from the beginning of the novel. Gene says to Finny the he would never have been good in the war, since he would have been willing to play basket ball with the foe instead of fighting. This brought Finny in to tears, and asks if Gene's part in the fall was just "blind impulse" and not a deliberate expression of hate.

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3 years ago

In ________, some type of pressure, such as gravity or blood pressure, forces substances across a membrane that acts like a filt

ELEN [110]

In FILTRATION, some type of pressure, such as gravity or blood pressure, forces substances across a membrane that acts like a filter.
Filtration

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3 years ago