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Natasha_Volkova [10]

3 years ago

9

A type of asexual reproduction in which a prokaryotic cell replicates its DNA and divides in half, producing two identical daugh

ter cells, is called

2 answers:

andrew-mc [135]3 years ago

7 0

Answer:

The answer would be binary fission. Thanks!

pav-90 [236]3 years ago

3 0

Conjugation. form<span> of sexual </span>reproduction<span> in which paramecia and some </span>prokaryotes<span> exchange genetic information.

hope it helps</span>

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Which accurately describes reproduction in gymnosperms? Check all that apply.

nikitadnepr [17]

Answer:

Fertilized ovules grow into seeds

Some require heat for seed dispersal

Male and female cones may grow on the same plant

Explanation:

pls give brainliest to me pls and i hope i helped you out!

8 0

3 years ago

Read 2 more answers

In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant

Ivenika [448]

Answer and Explanation:

<em><u>Available data</u></em>:

Comb shape is determined by genes at two loci (R, r and P, p).

The walnut comb genotype is R_P_.

The rose comb genotype is R_pp.

The pea comb genotype is rrP_.

The single genotype is rrpp.

a. <em>Walnut crossed with single produces 1 walnut, 1 rose, 1 pea, and 1 single offspring: </em>

Parental) RrPp x rrpp

Gametes) RP Rp rP rp rp rp rp rp

Punnet Square) RP Rp rP rp

rp <em>RrPp Rrpp rrPp rrpp</em>

rp RrPp Rrpp rrPp rrpp

rp RrPp Rrpp rrPp rrpp

rp RrPp Rrpp rrPp rrpp

F1 phenotype: 25% walnut, 25% rose, 25% pea, and 25% single.

F1 genotype: 4/16 RrPp, 1/16 Rrpp, 4/16 rrPp, 4/16 rrpp.

b. <em>Rose crossed with pea produces 20 walnut offspring</em>.

Parental) RRpp x rrPP

Gametes) Rp Rp Rp Rp rP rP rP rP

Punnet Square) Rp Rp Rp Rp

rP RrPp RrPp RrPp RrPp

rP RrPp RrPp RrPp RrPp

rP RrPp RrPp RrPp RrPp

rP RrPp RrPp RrPp RrPp

F1 phenotype: 100% walnut.

F1 genotype: 16/16 RrPp.

c. <em>Pea crossed with single produces 1 single offspring</em>.

This is not possible, because the pea genotype involves <u>at least</u> one dominant allele P. There are two possible crosses: <em>rrPp x rrpp</em>, which must produce half of the progeny pea and the other half single, or <em>rrPP x rrpp</em> which produce a whole pea progeny with no single offspring.

Parental) rrPp x rrpp

Gametes) rP rp rP rp rp rp rp rp

Punnet Square) rP rp rP rp

rp <em>rrPp rrpp rrPp rrpp</em>

rp rrPp rrpp rrPp rrpp

rp rrPp rrpp rrPp rrpp

rp rrPp rrpp rrPp rrpp

F1 phenotype: 50% pea, and 50% single.

F1 genotype: 8/16 rrPp, 8/16 rrpp.

d. <em>Rose crossed with pea produces 2 walnut, 1 single, and 1 pea offspring</em>.

This is not possible, because having one of the parents with a rose phenotype involves <u>at least one R allele</u>, which means that <u>there must be rose phenotype</u> in the progeny.

Parental) Rrpp x rrPp

Gametes) Rp Rp rp rp rP rP rp rp

Punnet Square) Rp Rp rp rp

rP <em> RrPp </em> RrPp <em> rrPp</em> rrPp

rP RrPp RrPp rrPp rrPp

rp <em>Rrpp</em> Rrpp <em>rrpp </em> rrpp

rp Rrpp Rrpp rrpp rrpp

F1 phenotype: 25% walnut, 25% rose, 25% pea, and 25% single.

F1 genotype: 4/16 RrPp, 1/16 Rrpp, 4/16 rrPp, 4/16 rrpp.

e. <em>Rose crossed with single produces 31 rose offspring</em>.

Parental) RRpp x rrpp

Gametes) Rp Rp Rp Rp rp rp rp rp

Punnet Square) Rp Rp Rp Rp

rp Rrpp Rrpp Rrpp Rrpp

rp Rrpp Rrpp Rrpp Rrpp

rp Rrpp Rrpp Rrpp Rrpp

rp Rrpp Rrpp Rrpp Rrpp

F1 phenotype: 100% rose (31 individuals equal 100% of the progeny).

F1 genotype: 16/16 Rrpp.

f. <em>Rose crossed with single produces 10 rose and 11 single offspring.</em>

Parental) Rrpp x rrpp

Gametes) Rp Rp rp rp rP rP rp rp

Punnet Square) Rp Rp rp rp

rp Rrpp Rrpp rrpp rrpp

rp Rrpp Rrpp rrpp rrpp

rp Rrpp Rrpp rrpp rrpp

rp Rrpp Rrpp rrpp rrpp

F1 phenotype: 50% rose, 50% single.

F1 genotype: 8/16 Rrpp, 8/16 rrpp.

3 0

3 years ago

What are the two factors that define our traits?

coldgirl [10]

There are a few theories as to what defines our traits to create our personality

According to one such theory, Dan P. McAdams claims our personalities develop in <span>three </span>stages:

<span>Our genes cause genetic mutations forming a 'draft' personality.During our early upbringing, our parents, teachers and friends treat us differently based on our looks and draft personality.Once we are older we then form a narrative of our lives based on our experiences growing up, and make decisions consistent with the character we have created.</span>

So our traits started from slight genetic variances, which effected how we were treated, which then shapes our own self-narrative. So really, our personality is one big story that we tell ourselves, and our childhood was the prologue to that story.

6 0

3 years ago

Which word means the same processes that are happening on Earth today are the same processes that happened in the past?

boyakko [2]

Answer:

uniformitarianism

Explanation:

Found from quizlet.

7 0

3 years ago

As the acidity of a solution increases, the pH will

Anettt [7]

Answer:

decreases

Explanation:

when the acidity in a solution increases the ph will decrease. when the acidity in a solution decreases the ph increases

4 0

4 years ago