During sexual reproduction, each parent contributes
A
a double helix of chromosomes.

B
one strand of chromosomes, or half of the new organism's DNA.

C
a dominant gene and a recessive gene.

D
multiple mutated cells.

Answers

Answer 1

Answer:

[tex]\boxed {\boxed {\sf B. \ One \ strand \ of \ chromosomes \ or \ half \ of \ the \ new \ organism's \ DNA}}[/tex]

Explanation:

Sexual reproduction involves gametes. These are sex cells (sperm for males and eggs/ovum for females).

These sex cells are formed during meiosis. During this process, two rounds of cellular division occur, so there are four resulting haploid cells. Haploid means they contain half of the genetic information.

These cells are haploid because during fertilization, a sperm and egg fuse to form a zygote. Each parent contributes half of the DNA to create one complete set of DNA.

Therefore, the best answer choice is B. one strand of new chromosomes or half of the new organism's DNA.


Related Questions

which of the following is not considered a natural resource a.plastic b.gold c.titanium d.coal

Answers

Answer:

Gold

Explanation:

HELPPPP PLS ASAP

In sexual reproduction, a zygote is
A the product of fertilization of an egg by sperm
B the gamete responsible for the sex of the offspring
C.an egg that has not been successfully fertilized
D the final stage before the birth of an offspring

Answers

Answer:

A the product of fertilization of an egg by sperm

Answer: A

the product of fertilization of an egg by sperm.

Explanation:

Hope this helped

Oxygen _____.

breaks down food into energy
is found in healthy bones and teeth
is an organic element
is an important element in DNA

Answers

Answer:

first one

Explanation:

can you help me with my question Which of the themes of Hawthorne's "Dr. Heidegger's Experiment" is illustrated by this passage? Paragraph 36: The most singular effect of their gayety was an impulse to mock the infirmity and decrepitude of which they had so lately been the victims. A. Gayety produces an impulse to mock. B. It is a great release to look back on our problems happily C It is human nature to mock or make light of problems we have been delivered from I need to know as soon as possible

Why do you think analogous structures would cause Evolutionary biologists problems when trying to determine the relatedness of certain species?

Answers

Answer: Two analogous structures are similar in phenotype and developed to perform the same function, despite not being inherited from a common ancestor. As so unrelated species may look related due to having analogous structures.

Explanation:

Analogous structures evolved due to Convergent evolution. It means that structures are similar in functions but differ in morphology.

What do you mean by Species?

A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.

Analogous structures are similar in structure that evolved independently in two living organisms to serve the same purpose. Due to their approx similarity sometimes evolutionary biologists face problems when trying to determine the genetic relatedness of certain species.

Therefore, Analogous structures evolved due to Convergent evolution. It means that structures are similar in functions but differ in morphology.

To learn more about Analogous organs, refer to the link:

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Help me with this please​

Answers

Answer:

C. Protective Barrier against infection and disease

Explanation:

The skin does not send chemical messages, nor electrical, and the skeletal and muscular system is what allows movement and structure, which leaves C as the answer because it is what protects outside diseases from getting into your blood or arteries

Hope this helps!

Abby has blue eyes like her father. Where is the trait found? A Genes in the chromosomes in a nucleus Home B Nuclei in a gene in a chromosome C Chromosomes in a gene in cytoplasm D Cytoplasm in a chromosome in a vacuole ​

Answers

Answer:A

Explanation:lol

I am found in plant cells. I am rigid, strong & stiff. I give support to the plant cell. I give the cell it's box shape
chlorophyll
mitochondria
cell membrane
cell wall

Answers

Answer:

cell wall

Explanation:

if it was a animal cell it would be a cell membrane

All stars
reflect light from the sun.
b. appear to wander off their star paths.
a.
c. produce their own light.
d. All of the above.

Answers

Answer:

option c. produce their own light.

okay this is the question please answer if you know it because I'm not sure if it's a. or d. and thxxx :)​

Answers

Skeletal, as that’s your skeleton.

Answer:

D!!

Explanation:

Cottontail rabbits closely resemble the fall and winter plants in which they hide

Answers

Answer:

In earlier generations, the rabbits that looked most like their surroundings survived and reproduced.

Explanation:

The cotton-tailed rabbits consist of 20 species that are found in America and have stubby tales with white under them. They're distributed over north, central, and southern America. They live in nests called forms, have an average life span of 2 years. Due to their camaflugeous nature, they change their coat color twice every year to protect themselves from predators.

is sleep deprivation inherited or spontaneous

Answers

Answer:

inherent

Explanation:

its most likely inherited

The answer is inherited.
Large study confirms that insomnia is hereditary. Researchers have identified specific genes that may trigger the development of sleep problems, and have also demonstrated a genetic link between insomnia and psychiatric disorders such as depression, or physical conditions such as type 2 diabetes.

Can you please help?

Answers

Answer:

A

Explanation:

as water heats the particles move faster and expand the opposite for cold

GIVING BRAINLIEST!!!


Which air temperatures usually result in snow and other forms of solid precipitation?

A) Freezing air temperatures
B) Cool air temperatures
C) Hot air temperatures
D) Warm air temperatures

Answers

The answer is cool is temperatures

Answer: B) Cool air temperatures

Explanation: Snow requires temperatures at the ground to be near or below freezing.

Explain these terms as related to fossils.
Inference
reconstruction

Answers

Explanation:

Resconstruction: a detailed drawing or reconstruction is made of the skeleton.

Inference evidance or reasoning for a fossil. Pls Give me Brainlyest

Answer:It is the putting together of fossils 

Explanation:

HELP due today in 5 min DONT G O O G L E USE or I’ll get an F

Answers

Answer: Waste managment and how safe the nuclear plants can be. They can really harm people and the enviorment  depending on where it is.

Explanation:

Some one please help

Answers

1. Cell

2. Blood

3. Cells

4. Epithelial

5. Tissues

6. Stomach

7. Organs

8. Digestive

9. Organism

10. Human

Answer:

1. cell

2. blood

3. cells

4. epithelial

5. tissues

6. stomach

7. organs

8. digestive

9. organism

10. human

Explanation: Hope this was helpful....

The diagram below shows the structure of an animal cell.
s
Which number label represents the cell membrane?
0 1
O2
04
06

Answers

Answer:

The cell membrane is label 1.

Explanation:

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment.

3. You are studying a population of pangolins (a scaly anteater), and you determine that there are two scale phenotypes: a thick scale that is dominant to a thin scale. You also find that thick-scaled individuals are better able to survive encounters with predators.
What evidence would you need in order to determine if this selective advantage is changing the population? (1 point)
-The number of individuals displaying each phenotype in the current generation.
-The number of individuals displaying each phenotype in the offspring.
-The number of individuals that survive predator encounters.
-The number of individuals displaying each phenotype in both the current generation and the offspring.

Answers

Answer:

The number of individuals displaying each phenotype in both the current generation and the offspring.

Explanation:

The number of individuals displaying each phenotype in both the current generation and the offspring. The correct option is 4.

What is phenotype?

The phenotype is the set of observable characteristics or traits of an organism in genetics.

The term encompasses the organism's morphology, developmental processes, biochemical and physiological properties, behaviour, and behavioural products.

To see if the thick scale phenotype's selective advantage is changing the population, we must compare the frequency of the thick scale phenotype in the current generation to its frequency in the next generation.

This would necessitate data on the number of people who exhibit each phenotype in both the current generation and their offspring.

As a result, the evidence we require to determine whether the selective advantage is changing the population is "the number of individuals displaying each phenotype in both the current generation and offspring."

Thus, the correct option is 4.

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What is the importance of neutral variation in evolution?
A trait that is neutral in one environment may be advantageous in another.
It is usually removed from the population by natural selection due to its deleterious phenotypes in the environment.
A trait that is neutral will most likely be removed from the gene pool.
It will cause for a population to risk decline and extinction.

Answers

Answer:

A trait that is neutral in one environment may be advantageous in another.

Explanation:

Neutral variation refers to the variation (either genetic or phenotypic variation) which is unaffected by natural selection. Neutral variation is known to increase genetic variation, which is a prerequisite to evolutionary change. An allele may be neutral in one environment and beneficial (or deleterious) in another. In consequence, neutral variation in one environment may increase the response to selection in different environmental conditions.

help me please i have 2 mins left (science)

Answers

Answer:

half of the moon's visible surface

<3

Answer:

A: Half of the moon's visible surface

Help ASAP!!!! 20 points.

Answers

Answer:

5= mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.

Plzz Help!! Thanks!!

Answers

Some of the offspring will have red and white flowers.

Waste water is"________" by bacteria in the secondary treatment.

killed

digested

ignored

heated

Answers

The answer to your question is Digested

The dew point is the point at which the
water vapor beings to fall out of the air?


True or
False

Answers

Answer:

The dew point is the temperature when water will start to condense out of the air. When air is saturated as much as possible with water vapor it is at the dew point. Air that is holding less vapor than it actually could is below the dew point

Yellow-eyed salamanders have been cited as an example of Batesian mimicry; their orange body color and yellow eyes mimic the coloration of the toxic California newt. Although the salamanders are palatable, their mimicry of a unpalatable species tends to prevent predators from attacking. In a follow-up study, Kuchta et al. observed the reaction of Western scrub jays (predators with toxic newt experience) when presented with both a yellow-eyed salamander and a closely related species after being presented with a toxic newt. What was significant about this study

Answers

Answer:

It was a follow-up controlled experiment that showed how a species can influence selection in another species.

Explanation:

A follow-up (cohort) study is a type of study followed over time in order to determine the development of a particular outcome. Moreover, a controlled experiment is one in which conditions are controlled by the researcher, and thereby it is easier to determine the incidence of the outcome. In the case above described, researchers performed a follow-up controlled experiment in which they measured how a species can influence selective processes undergone by other species.

1. Select the correct pairing of organism to its type
A.Cow - producer
B.Grass - decomposer
C.Fungi - primary consumer
D.Bobcat - secondary consumer

Answers

Answer:

d

Explanation:

trust me

Answer: D.Bobcat - secondary consumer

Explanation: secondary consumers eat primary consumers like squirrels and some rodents.

if one parent has two dominant alleles and another parent has two recessive alleles, the offspring will have____. (Hint: Draw a Punnett square for parents TT and tt.)

A. The recessive phenotype.
B. The dominant phenotype.
C. Two dominant alleles.
D. Two recessive alleles.

Answers

d, two recessive alleles

difference between parallel venation and reticulate venation​

Answers

this is where you can get

The difference between parallel venation and reticulate venation​ is in parallel venation, the vein of the leaf blade is in a parallel pattern, and in reticulate the vein of the leaf blade is a net or web-like structure.

What is venation?

Venation is the pattern of veins present in the leaves. There are different patterns of veins present in the leaves, parallel venation, for example, banana leaf, and reticulate venation​, for example, papaya leaf.

Thus, In contrast to reticulate venation, where the vein of the leaf blade is arranged in a net-like pattern, parallel venation has the vein of the leaf blade arranged in a parallel pattern.

Learn more about venation

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The ovary controls which of the following hormones?
a. Estrogen b. Follicle stimulating hormone c. c. Luteinizing hormone d. Progesterone

Answers

Answer:

estrogen and progesterone

What does Sach see in the plant cells when he views them through the “new” microscope?

Answers

Answer:

Expla When he looked in the microscope, he saw solid structures, which we now consider chloroplasts,which are what produce the starch. ... They do this so that they can create the sugars that produce the starch in the plant.nation:

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