What would happen to an embryo if all of its cells fail to go through S phase (DNA replication)? Is the embryo likely to survive, and why?

Answers

Answer 1
Answer: Embryo undergoes mitotic divisions throughout its development. Since the number of cells increases with each mitotic division, it is important all of them to persist in normal cell division. That way the embryo development will end successfully when a baby is born. But, if all cells of the embryo fail to go through S phase, the DNA will not replicate. As mentioned, DNA replication occurs in the S phase of mitosis. A cell cycle will be interrupted and the mitotic divisions will stop. Consequently, the embryo will die.

Related Questions

This is where the genetic information is found in a eukaryotic cell?
the three toed sloth often is camouflaged by algae which type of symbiosis does this represent and why
What changes can occur in an aquatic ecosystem as a result of neutrient loading?
Igneous rock texture refers to ____ size
Answer options are:A- DECOMPOSITION B- HUMAN EMISSIONSC- PLANT RESPIRATIOND- PHOTOSYNTHESIS

Compare and differentiate the types of neurons that synapse in the posterior, lateral, and anterior gray horns of the spinal cord.

Answers

The question ask to differentiate the types of neurons that synapse in many areas in the spinal chords and in my research, the difference of them is that the neurons in the spinal chords is multipolar while in the lateral gray horns are autonomic motor neurons

Question 17 of 25Which strand of mRNA would be made during transcription using the DNA
strand shown below?
GCA TAG
A. GCU AUG
B. TAG GCA
C. CGU AUC
D. GCT ATC

Answers

Answer: The answer is C

Explanation: C and G pair with each other and T pairs with A and A pairs with U

3) A variable that is kept the same during an experiment is a(n) __________.A. control variable
B. extraneous variable
C. control group
D. dependent variable
E. independent variable

4) A variable that is purposefully changed in an experiment is a(n) __________.
A. control group
B. independent variable
C. control variable
D. extraneous variable
E. dependent variable

5) A variable that is changed, depending on the change in the independent variable is a(n) __________.
A. dependent variable
B .control variable
C. control group
D. extraneous variable
E. independent variable

Answers

A variable that is kept the same during an experiment is a controlled variable. Thus, the correct option for this question is A.

A variable that is purposefully changed in an experiment is an independent variable. Thus, the correct option for this question is B.

A variable that is changed, depending on the change in the independent variable is a dependent variable. Thus, the correct option for this question is A.

What do you mean by Variables?

In experimental science, variables may be defined as a type of factor or information that can be changed during the course of an experiment. It is a type of factor that can be manipulated, controlled for, or measured in an experiment.

In experimental science, there are three types of variables are used. They are as follows:

  • Independent variable: A variable that can be altered during a scientific experiment.
  • Dependent variable: A variable that can be tested or measured during a scientific experiment.
  • Controlled variable: A variable that can be kept constant during a scientific experiment.

To learn more about Variables, refer to the link:

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Which describes the mating is organisms that have different homozygous alleles for a single trait? A: monohybrid cross
b: dihybird cross
c: homozygous cross
d: heterozygous cross

Answers

The answer is A

Breeding of individuals that have genes for a single trait:
MONOHYBRID CROSS.

We call it a monodihybrid cross when we are considering a cross with only one trait or characteristic.
"mono" means one and "hybrid" means that each trait will have two different alleles (for gene A: A or a), one is dominant and the other is recessive.

A: monohybrid cross describes the mating is organisms that have different homozygous alleles for a single trait.

Which foodborne organism creates havoc within the gastrointestinal tract by producing a toxin?

Answers

Samonella. They cause quite a nasty response in the gut!

Answer:

E. coli

Explanation:

Organisms can have positive or negative impacts on the ecosystem they live in. The cane toad, or Rhinella marina, was introduced to the Hawaiian Islands in 1932 by sugar cane farmers. Farmers released the toads in their crops to help control pests that were damaging the sugar cane. The cane toad has few natural predators, as it secretes a poisonous toxin from its skin that deters larger organisms from eating it. As a result, the cane toad population thrived and grew to number hundreds of thousands by 1935. width="379" Which role does the cane toad play in the Hawaiian Islands?a. native species
b. invasive species
c. uncontrolled species
d. endangered species

Answers

The answer is b. invasive species.

Invasive species are species that are not native to specific ecosystem, but they have a capability to spread widely through the ecosystem, This way they can threaten native species of the ecosystem or cause environmental harm.

Answer:

b

Explanation: