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den301095 [7]
3 years ago
7

The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.

Biology
2 answers:
hjlf3 years ago
6 0

The answer is D. DNA content is halved only in meiosis I. Ploidy level changes from diploid to haploid in meiosis I, and remains haploid in meiosis II.

abruzzese [7]3 years ago
4 0

Answer:

option d

Explanation:

Meiosis stage was formerly called the reduction stage involving two divisions; meiosis I and II. After the first stage of meiosis, the ploidy level of each of the daughter cell changes is in an haploid state, meaning here the DNA content has been reduced by half. In humans (2n = 46), who have 23 pairs of chromosomes, the number of chromosomes is reduced by half at the end of meiosis I (n = 23). This haploid state is still maintained by the meiosis II just undergoing the normal mitosis division.

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Which includes all the others? zoologist biologist paleontologist or botanist
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paleontologist, zoology for the type of dinorsaur, biology for the makeup for testing, and botanist to identify what kind of plants and stuff

4 0
3 years ago
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Determine the phenotypic ratios of the offspring. 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constrict
skad [1K]

From a cross between dihybrid individuals, whose diallelic genes code for one trait each, expressing complete dominance, the phenotypic ratio is B) <em>9 green-inflated : 3 green-constricted : 3 yellow-inflated :1 yellow-constricted.</em>

-------------------------------

<em />

<em>Since I do not have the cross, I will assume the cross involves two dihybrid individuals by looking at the options.</em>

So, let us picture the situation,

  • Two diallelic genes code for one trait each, color and inflated/constricted pods.
  • G allele is the dominant and codes for green pods
  • g allele is recessive and codes for yellow pods
  • I is the dominant allele and codes for inflated pods
  • i is recessive and codes for constricted pods
  • These genes are not linked

1st Cross)   Two h0m0zyg0us individuals

Parental)  GGII     x     ggii

F1) 100% GgIi

2nd Cross) Selfcross between F1 individuals

Parentals)   GgIi    x    GgIi

Gametes) GI, Gi, gI, gi

                GI, Gi, gI, gi

Punnett square)     GI        Gi        gI       gi

                     GI      GGII     GGIi   GgII   GgIi

                     Gi      GGIi      GGii   GgIi   Ggii

                      gI      GgII     GgIi    ggII    ggIi

                      gi      GgIi     Ggii    ggIi     ggii

F2)    Genotype

  • 1/16 GGII
  • 2/16 GGIi
  • 1/16 GGii
  • 2/16 GgII
  • 4/16 GgIi
  • 2/16 Ggii
  • 1/16 ggII
  • 2/16 ggIi
  • 1/16 ggii

   

       Phenotype

  • 9/16 G-I- ⇒ Green and Inflated
  • 3/16 G-ii ⇒ Green and constricted
  • 3/16 ggI- ⇒ Yellow and inflated
  • 1/16 ggii ⇒ Yellow and constricted

Phenotypic ratio 9:3:3:1

<u>Options</u>

<u />

A) 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constricted ⇒ NOT CORRECT

B) 9 green-inflated : 3 green-constricted : 3 yellow-inflated : 1 yellow-constricted ⇒ <u>CORRECT</u>

C) 9 green-constricted : 3 green-inflated : 3 yellow-constricted : 1 yellow-inflated ⇒ NOT CORRECT

D) 9 yellow-constricted : 3 yellow-inflated : 3 green-constricted : 1 green-inflated ⇒ NOT CORRECT            

-----------------------------

Related link:  brainly.com/question/1185199?referrer=searchResults

                       brainly.com/question/12541734?referrer=searchResults

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Cacti grow slowly due to the fact that they keep their stomata closed for much of the day. Why would closing their stomata durin
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I believe the answer is A
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A 35-year-old-man with a long history of occasional bloody diarrhea and abdominal pain presents with acute onset severe abdomina
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Answer:

The correct answer is option A. "Abdominal radiograph".

Explanation:

Abdominal radiograph, or abdominal x-ray, is a diagnosis tool at which an image of the abdominal cavity is obtained based on the exposure of a small dose of ionizing radiation. The patient described in the question could be suffering from different conditions based on its symptomatology. The first tool to help to make a proper diagnosis is to perform an abdominal radiograph, to see any internal evidence of the possible cause of the occasional bloody diarrhea and abdominal pain.

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Answer:

Explanation:

What?!

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