Which situation is a result of crossing-over during meiosis?
A
Genes are duplicated exactly, ensuring that offspring will be
identical to the parents.
B
Chromatids thicken and align themselves, helping to ensure
genetic continuity.
с
Genes are rearranged, increasing the variability of offspring.
D
Chromatids fail to sort independently, creating abnormal
chromosome numbers.

Answers

Answer 1

Answer:

C

Explanation: Genes are rearranged due to crossing over and offspring can vary in traits and appearance


Related Questions

Worst tsunami in modern times

plz HELP

Answers

Answer:

Maule, Chile 2010: Chile and other countries.

Explanation:

I am really smart but not inna nerdy way and i already learned about this so here ya go :)

Help I need helpppppppoo

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meters per second. distance is meters and time is seconds
meters per second I’m right

How do genes control the production of proteins?

Answers

The type of RNA that contains the information making a protein is called messenger RNA (mRNA) Because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Through the processes of transcription and translation, information from jeans is used to make proteins.

Indicate the correct designation of the paired sex chromosomes.
male: XY
female: YY

Answers

Answer:

Out of the written pairs, males have XY while females have XX

Explanation:

A stimulus is anything that causes a reaction or response. What is an example of an outside stimulus and an inside stimulus?

Answers

Answer:Stimulus: any change in an organism's environment that causes the organism to react. It is a fancy way of saying “cause”. Example: An animal is cold so it moves into the sun.

Explanation:

Answer:

hi

Explanation:

any change in an organism's environment that causes the organism to react. It is a fancy way of saying “cause”. Example: An animal is cold so it moves into the sun.

Two cell organelles are described below.

Organelle A: Present in plant cells but not present in animal cells
Organelle B: Much larger in size in plant cells than in animal cells

Which of the following is most likely correct?

Answers

Answer:

Organelle A is chloroplasts

Organelle B is the vacuole

Explanation:

I don’t exactly understand what it means on which one is correct, but I hope this helps you.

In mitosis, parent cell(s) divide into daughter cell(s).

Answers

Answer: yes, mitosis is simple cell division

Explanation: mitosis is the process by which a cell divides into two cells, each with DNA from the duplication of the two original strands (in eukaryotes, duplication of all chromosomes).

Answer:

One, two

Explanation:

When ONE parent cell divides, it divides into TWO daughter cells.

1. A dominant gene (A) causes yellow color in rats, the dominant allele on another independent gene (R) produces black coat color. When the two dominants occur together (A_ R_) they interact to produce gray coat color. Rats of the genotype aa are cream-colored. If a gray male and a yellow female, when mated, produce offspring approximately 3/8 of which are yellow, 3/8 gray and 1/8 cream, and 1/8 black, what are the genotypes of the parents

Answers

Answer:

Parents: Yellow (Aarr) and Grey (AaRr)

Explanation:

Given:

allele A = yellow

allele R = black,

Heteroozygous = gray

Genotypes of the parents:

yellow (Aarr) - female

gray (AaRr) - gray

cross between these

Parents: Yellow (Aarr)  and Grey (AaRr)

Gametes: (Ar, ar) and (AR, Ar, aR, ar)

F1 (Punnet square)

----|----- AR ------|------- Ar ------|------ aR -----|----- ar

Ar | AARr (gray) | AArr (yellow) | AaRr (gray) | Aarr (yellow)

ar | AaRr (gray) | Aarr (yellow) | aaRr (black) | aarr (cream)

Ratio: 3/8 yellow : 3/8 gray : 1/8 cream : 1/8 black

What is the definition of "earth overshoot day?"

Answers

Answer: Earth Overshoot Day is the calculated illustrative calendar date on which humanity's resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year. The term "overshoot" represents the level by which human population overshoots the sustainable amount of resources on Earth.

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True or false. The offspring that survived reproduces and pass on inherited characteristics DO NOT normally help them adapt to their environment.

Answers

Answer:

True

Explanation:

thx for the points

blanced diet must contain enough energy to meet the body's needs what else must it contain​

Answers

Answer:

Water

Explanation:

Answer:

A balanced diet should contain many good Factors and they are -It should be very healthy it should be lightit needs to be nutritional The diet should not make the person fatIt should provide better sleep It should keep away the diseases

Hope u like my answer

In humans, two abnormal conditions, cataracts in the eyes and excessive fragility in the bones, seem to depend on separate dominant genes located on different chromosomes. A man with cataracts and normal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones. What s the probability that their first child will a) be free from both abnormalities b) have cataracts but no fragile bones c) have fragile bones but not cataracts; d) have both cataracts and fragile bones

Answers

Answer:

a) 1/4 or 25%

b) 1/4 or 25%

c) 1/4 or 25%

d) 1/4 or 25%

Explanation:

Both cataracts and bone fragility are dominant conditions and are independently inherited. Let cataracts allele be represented by C and fragile bone by B.

A man with cataracts (CC or Cc) and normal bones (bb), whose father had normal eyes would have the genotype Ccbb. The cataract would be heterozygous because he had a normal eyes father. The affected allele must have been inherited from his mother.

A woman free from cataracts (cc) but with fragile bones (BB or Bb) whose father had normal bone would have the genotype ccBb. The fragile bone would be in heterozygous condition because she had a normal bone father. The affected allele must have been from the mother.

    Ccbb    x    ccBb

Offspring

4 CcBb - cataract eyes, fragile bone

4 ccBb - normal eyes, fragile bone

4 Ccbb - cataract eyes, normal bone

4 ccbb - normal eyes, normal bone

a) Probability that their first child would be from both abnormalities = 4/16 or 1/4 or 25%

b) Probability that their first child would have cataracts but no fragile bones = 4/16 or 1/4 or 25%

c) Probability that their first child would have fragile bones but no cataracts = 4/16 or 1/4 or 25%

d) Probability that their first child would have both cataracts and fragile bones = 4/16 or 1/4 or 25%

1 point
7. In the wild, rabbits breed very quickly producing many offspring in a
short period of time. Which of the following is most likely the reason why
rabbits have adapted the ability to breed quickly? *
There are many diseases that wipe out entire rabbit populations
O They have limited habitats that they live in
There is limited food in most habitats
O They have many predators and short life spans

Answers

Answer:

they have short life spans and many predators.. hope this works

MARKING PEOPLE AS BRAINLIDT IF CORRCET

True or False: Bone cells contain different DNA than blood cells.

Answers

Answer:

True the bone cells do have different DNA than blood

Explanation:

True.
bone cells and blood cells do different things, hence the different DNA

Which of the following are responsible for the production of cancer cells?
A. oncogenes
B. mucin
C. tumor suppressor genes
D. cytosol

Answers

Answer:

The answer is C, tumor suppressor genes

What are things we can learn from examining hair? Three parts of hair?

Answers

Answer: The hair is an outgrowth or appendage that grows from a hair follicle.

Explanation:

The three parts of the hair are cuticle, cortex, and medulla. The cuticle is the hard part made up of scales with keratin protein, cortex is the inner pigmented part, and the medulla is the innermost part of the hair.

During hair examination the type of cuticular scales helps in determining the organism to which it belongs, diameter of the medulla also helps in determining the organism, the DNA analysis of the hair can link to its origin, the detection of heavy metal poisoning like lead, arsenic, and others. Drug abuse details can also be determined by the hair analysis.

Phil observes that when he turns on a flashlight, chemical energy from the batteries is transformed into light energy. Phil tries to think of some other ways energy is transformed. Which of the following scenarios describe an energy transformation? Choose the three scenarios that apply.
A. a lamp being turned on
B. a toaster being used to toast bread
C. chocolate melting in your hand
D. a car horn honking

Answers

Answer:

A. a lamp being turned on

B. a toaster being used to toast bread

D. a car horn honking

Explanation:

Energy transformation is the conversion of one form of energy to another form in accordance with the law of conservation of energy. According to this question, Phil is observing a flashlight, which turns chemical energy (batteries) into light energy.

From the examples given in this question, the following are examples of scenarios that involve energy transformation:

- A lamp being turned on: This converts chemical energy to light energy.

- A toaster being used to toast bread: This converts electrical energy to heat energy.

- A car horn honking: This converts electrical energy to sound energy.

Note that, melting of a chocolate does not transform any form of energy.

Instincts are more complex innate behaviors. What are some examples of instinctive behaviors in animals?

Answers

Answer:

chicks in many bird species instinctively open their mouths wide when their mother returns to the nest. the mother instinctively spits up food.

In the Linnaean system, organisms are classified into different groups based on which of the following?

Select each correct answer:
A- similarities in genetic sequence.
B- structural similarities.
C- similarities during embryonic development.
D- similarities in habitat.

Answers

Answer:

I think the answer is (c)

Answer: A, B, C

Explanation:

Classification of animals is done why​

Answers

It is necessary to classify organisms because:


It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences.

UwU

**anatomy & physiology question**

if you are at a 60X magnification and the field diameter is 3.2mm an object that's about 1/4th the size of the field diameter what is the size of the object?

Answers

Answer:

0.8mm.

Explanation:

If the size of an object is about 1/4th the size of the field diameter so the size of an object is 0.8mm because the fourth part of field diameter is equals to 0.8mm. Due to knowing field diameter of microscope we can calculate the real size of objects that is too small which can't be seen with the naked eye. So one fourth part of field diameter is equal to 0.8mm.

Please I need Help!!
● Prophase I
● Metaphase I
● Anaphase I
● Telophase I
● Prophase II
● Metaphase II
● Anaphase II
● Telophase II

Answers

Answer:

Its in this order: 3 - 4 - 1 - 6 - 5 - 7 - 2 - 8

Explanation:

I learned this a while ago so I would know

Help!

Good coping skills involve.
A. suppressing emotions.
B. managing emotions.
C. giving into emotions.

Answers

Answer:

B

Explanation:

Answer: B

Explanation: Managing emotions is actually healthy, being able to control how you feel about a certain topic will make life much easier. Practicing this will only help in the future. Suppressing emotions will only stress you out more. Giving into emotions is obviously going in the wrong direction, don't give up.

All energy comes from the sun. In 2-3 sentences, explain how it is transferred from one organism to another.

Answers

Answer:

When the sun rays come down into the atmosphere and the plants on the ground use photosynthesis to reproduce and eat. If an animal, for example, a bunny, eats grass the energy will be transferred to the bunny. If a fox eats the bunny, the energy transfers to the fox. the amount of energy will be reduced each time something is eaten because it keeps being consumed over and over.

Explanation:

Lab: Natural Selection answer in the link pls 50 points and

Answers

We cannot see the image, tell me in the comments what you want me to answer maybe i can help you.

What are chromosomes? How are they different between prokaryotes and eukaryotes?

Answers

Answer: A chromosome is a long DNA molecule with part or all of the genetic material of an organism. The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not

Explanation:

Chromosomes are long thread of DNA molecule. Prokaryotes have one chromosomes while eukaryotes have many.

Chromosome:

It is a long thread of DNA molecule as a part of genetic material of all living organisms.

In prokaryotes, DNA is not very much compacted.Only one chromosome is usually scene in prokaryotes.

In Eukaryotes, Chromosome are very compacted and form an special structure.Multiple chromosomes are found in Eukaryotes.

   

Therefore, chromosomes are long thread of DNA molecule. Prokaryotes have one chromosomes while eukaryotes have many.

To know more about Chromosomes,

https://brainly.com/question/296477

The amount of sunlight reflected from the Moon to Earth is what characterizes the Moon’s appearance. During which phase would the Moon be farthest away from the Sun?

Answers

Answer:
full moon hope this helps

Body Cells are
O A) 1N
O B) 2N

O C) 4N
OD) 21N

Answers

Answer:

B) 2N

Explanation:

Body cells have 46 chromosomes and are called 2N cell. It's a diploid cell.

2N = 4 chromatids. During meiosis, the 2N cell divides into 4 nonidentical 1N cells.

Which animals are the main consumers of the Pan dropseed (Sporobolus ioclados) ?

Answers

Answer:

elephants

Explanation:

The animals that are the main consumers of the Pan dropseed are all animals have complex organ systems. Especially Seed-eating birds including American sparrows, and elephants.

What is Sporobolus ioclados?

The grass family contains a nearly universal genus of plants called Sporobolus. The genus' members are frequently referred to as dropseeds or sacaton grasses.

They grow in numerous sorts of open habitat in warmer temperatures and are typical grassland and savanna plants. At least one species, as well as another, are endangered.

Only alkali sacaton has the little moth Bucculatrix sporobolella's caterpillar been discovered (Sporobolus airoides).

On Laysan Island, it appears that the local elimination of S. virginicus by feral rabbits led to the extinction of the Laysan dropseed noctuid moth (Hypena laysanensis).

All of the animals that eat the Pan dropseed most frequently have intricate organ systems, including seed-eating birds including American sparrows, and elephants

Thus, these are the animals that are the main consumers of the Pan dropseed.

For more details regarding consumers, visit:

https://brainly.com/question/7437497

#SPJ6

I really need someone who is good at biology please

Answers

Answer:

What's the question?

Answer:

whats the question

Explanation:

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