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Stolb23 [73]
3 years ago
14

Prior to meiosis during which stage of the cell cycle does dna replication occur

Biology
1 answer:
Korvikt [17]3 years ago
3 0
DNA replication occurs in the sythesis stage of the cell cycle.
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Human ABO blood type is determined by a single gene that comes in 3 distinct alleles: IA , IB , and i. The IA and IB alleles are
alexandr402 [8]

Answer:

given, mother and father are heterozygotes.

let, father has B blood group and mother has A blood group.

then their heterozygous  genotypes are --

father = iB, iO  and mother = iA, iO

punnett square will be,

        iB        iO

iA     iA iB     iA iO

iO     iB iO    iO iO

the genotypes of their progeny will be, iAiB ,  iAiO ,iBiO and iOiO

and phenotypes will be 3 are heterozygous and 1 is homozygous.

5 0
3 years ago
Mitosis and meiosis have all of the following in common except
GaryK [48]

Answer:

Mitosis and meiosis have parent cels that divide to produce daughter cells is false

5 0
3 years ago
3. One grape is placed in tap
DerKrebs [107]

Answer:

the dependant is the water the independant is the mass i think

Explanation:

3 0
3 years ago
Suppose that in unicorns, two autosomal loci interact to determine the type of tail. One locus controls whether a tail is presen
Nina [5.8K]

Explanation:

As you can see in the picture below, this is a dihybrid cross with a twist.

We can accomplish that mutually parentages are heterozygotes for both characters because the genotypes are  

9 unicorns with curly tails (shown in green)

3 with straight tails (shown in red)

3  curly tales trait carriers with no tail (shown in dark blue)

1  straight tail trait carriers with no tail ( shown in light blue)

If this was an ordinary case of the dihybrid cross, we would get a 9:3:3:1 phenotype ratio.

However, since the first trait, the presence of the tail, is affecting the other trait, the trait texture, the ratio is altered.

\frac{1}{4} of the offspring (genotypes tt C_   and tt SS) has no tail, therefore we cannot observe the texture of the tail (some of the tailless individuals have Curly alleles -blue squares marked with green, some of them have Straight alleles -blue square marked with red ).

Therefore, the altered ratio is  \frac{1}{2} curly tails,\frac{1}{4} straight tales, \frac{1}{4} tailless

6 0
3 years ago
Type the correct answer in the box. Spell all words correctly.
Anit [1.1K]

Henry Faulds and Galton are cousins which both helped each other like Faulds wrote a book about fingerprints which helped Galton out a lot.

Faulds was also the Father of Fingerprinting.

hope i helped ~Zuzu :)

7 0
3 years ago
Read 2 more answers
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