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2 years ago

Both mitosis and meiosis_____

Biology

1 answer:

Evgen [1.6K]2 years ago

8 0

Answer:

duplicate their chromosomal DNA prior to nuclear division

Explanation:

Mitosis and meiosis both involve duplication of a cell's DNA content. Each strand of DNA, or chromosome, is replicated and remains joined, resulting in two sister chromatids for each chromosome. A common goal of mitosis and meiosis is to split the nucleus and its DNA content between two daughter cells.

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which one of the following is no classified as learned behaviour? A,insight B,innate C,latent D,coditioned

Zigmanuir [339]

Answer:

Option b) is the correct answer .

Explanation:

hope its helpful.

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3 years ago

Which description applies to alternative mRNA splicing?A-protein modifications such as addition of a functional group, or struct

ElenaW [278]

Answer:

The correct answer is E-processing of exons in mRNA that results in a single gene coding for multiple proteins.

Explanation

Splicing is the process where introns are cut out of the mRNA so only the coding parts for proteins. In this way, genes can code for many proteins, depending on how the amino-acids are arranged.

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2 years ago

A spider is very different from a human. list two properties that the two species exhibit despite all of their obvious differenc

mars1129 [50]

The two properties that a human and a spider would exhibit is that both of them are composed of eukaryotic cells and the exhibit sexual reproduction. Eukaryotic cells are cells with membrane bound organelles such as the nucleus which contains the genetic material enclosed by a nuclear membrane. Sexual reproduction is a type of reproduction where livings give rise to new off springs by combining genetic material from two individuals of different sexes.

5 0

2 years ago

Read 2 more answers

If you count 52 purple rough corn kernels and 50 yellow smooth corn kernels how many people smooth corn kernels should you expec

Vitek1552 [10]

Answer:

Explanation:

In corn,

Smooth kernel (S) is dominant to rough kernel (s)

Purple kernel (P) is dominant to yellow kernel (p)

Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.

The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.

Here,

Purple rough (P_ss) = 52

Yellow smooth (ppS_) = 50

Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.

If the total progeny was z, 3/16*z = 50

z = (50*16)/3 = 267

Total progeny = 267 kernels

Yellow rough kernels (ppss) = (1/16*267) = 17

So approximately 17 corn kernels will be yellow and rough.

8 0

3 years ago

Which of these organelles is not found in a fungal cell?

tigry1 [53]

Answer:

Chloroplast

Explanation:

Fungi organisims are complete eukaurions, either it is plury or unicelular, it will allways have a definited nucleus, Golgi apparatus, reticulum, vesicles, and other. Generally, they have mitochondrions as machinary to get ATP; but some lesser, and specific fungis like thoses in the order Microsporidian, lost them through evolution.

Either way, a fungi does not have chloroplast, being an chemeotroffic organism, it have to adquire carbon and nitrogen sources from others.

4 0

3 years ago