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Vladimir79 [104]
2 years ago
12

During metaphase sister chromatids come to the middle of the cell true or false

Biology
1 answer:
AnnZ [28]2 years ago
8 0
Q. During metaphase sister chromatids come to the middle of the cell...

A. False

Why?

Well, during metaphase sister chromatids separate and move to the opposite poles of the cell not towards the middle of it.
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The cytoplasmic extensions that, together with the cell body, provide the main receptive surfaces for neurons are the:
BartSMP [9]
I’m pretty sure it’s dendrites
:)
4 0
3 years ago
____ is a layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
Virty [35]
The myelin sheath is the layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
3 0
3 years ago
Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because:
miss Akunina [59]

Answer:

The correct answer is option C. they amplify the original signal manyfold.

Explanation:

A phosphorylation cascade is a chain or sequence of the reactions that are categorized by the events where one enzyme phosphorylation another up-to phosphorylation of thousands of proteins.

The phosphorylation cascade can be experienced in involving the protein kinases as they the signal transduction of different cellular hormone messages due to their ability to amplify the original signal multiple time and make it more effective.

Thus, the correct answer is option C.

4 0
3 years ago
If a pea plant that is herterozygous for rounds, yellow peas is crossed with a pea plant that is homozygous for round peas but h
Keith_Richards [23]

Answer: There re two different types of phenotypes in the offsprings that is Round yellow and Round green.

Explanation-

As per the Mendelian inheritance, Round shape and yellow color of pea are dominant over wrinkled shape and green color of pea.

According to the question, genotypes of parents are- RrYy ( heterzygous for round and yellow) and RRYy ( homozygous for round and heterozygous for yellow).

The first parent can produce four different gametes that is RY, Ry, rY, ry whereas the second parent will produce only two types of gametes that is RY and Ry.

When they are crossed, they will produce two different phenotypes in the offsprings.

Refer punnett square.


7 0
2 years ago
The two major surviving clades of diapsids include modern animals like snakes, lizards, crocodiles, and ______________________.
kvasek [131]

The two major surviving clades of diapsids include modern animals like snakes, lizards, crocodiles, and birds

A clade is a branch in a cladogram that has a single common ancestor with all of its offspring. An evolutionary tree that depicts the relationships between species' ancestors is called a cladogram. In the past, cladograms were created using similarities among species' phenotypic or physical characteristics.

All hominoids, including humans, chimpanzees, gorillas, orangutans, and gibbons, are members of this group. The Hominoid clade is a subgroup of the Anthropoids, a broader clade that includes Old World and New World monkeys. The use of a phylogenetic tree makes clade identification simple. Just visualize pruning even one branch from the tree.

To learn more about clade please visit
brainly.com/question/9027627
#SPJ4

4 0
1 year ago
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