What explains how the parents in a family both have the same eye color, but some of their children have a different eye color? Assume for this example that eye color is determined by a single gene.

A. One parent is homozygous dominant, and the other heterozygous for a gene that controls eye color allowing some of the children to express a different trait.

B. The parents are both homozygous dominant for a gene that controls eye color allowing some of the children to get two recessive alleles.

C.One parent is homozygous dominant, and the other homozygous recessive for a gene that controls eye color allowing some of the children to express a different trait.

D. The parents are both heterozygous for a gene that controls eye color allowing some of the children to get two recessive alleles.

Answers

Answer 1

The correct option is D. The parents are both heter0zyg0us for a gene that controls eye color allowing some of the children to get two recessive alleles.

What is complete dominance?

When the dominant allele completely masks the recessive allele, we talk about complete dominance.

This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.

In the exposed example, let us assume that the alleles that code for eye color are the followings,

E is the dominant allele and codes for the dominant colore is the recessive allele and codes for the recessive color

If at least one parent is h0m0zyg0us dominant for the trait, EE, the whole progeny will express the dominant trait because all of them will carry at least one dominant allele.

If both parents are heter0zyg0us Ee, some children will express the dominant trait and some other the recessive trait. This is because some of the children receive at least one dominant allele and some others only receive recessive alleles.

Cross:

Parentals) Ee   x   Ee

Gametes) E   e    E   e

Punnett square)     E     e

                       E    EE    Ee

                       e    Ee    ee

F1) Genotype

1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant EE

1/2 = 50% of the progeny is expected to be heter0zyg0us Ee

1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive ee

    Phenotype

3/4 = 25% of the progeny is expected to have the dominant eye color

1/4 = 25% of the progeny is expected to have the recessive eye color

The correct option is D. The parents are both heterozygous for a gene that controls eye color allowing some of the children to get two recessive alleles.

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compare light and electron microscope

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See the attached file!!!!

What is the shortest interval on record between the birth of two siblings?

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Answer:

208 days

Explanation:

The shortest interval between two children born to separate confinements is 208 days for Jayne Bleackley (New Zealand) who gave birth to Joseph Robert on 3 September 1999 and Annie Jessica Joyce on 30 March 2000.

difference between accomodation and pupil reflex?​

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Answer:

The pupillary light reflex compensates for changes in illumination level, whereas the accommodation responses compensate for changes in eye-to-object-viewed distance.

Explanation:

Hope this helped!

If the mass of an object increases, what also increases

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Answer:

The force does too

Explanation:

From the universal law of gravitation, F ∝ m1m. Since force is directly proportional to mass, if the mass of either of the object increases, the force also increases.

What is the connection between genetics and natural selection?.

Answers

animals with better genetics will survive more often than animals with poor genetics that cannot benefit them. for example: if there were mice that lived in a desert with orange sand, orange colored mice would be more likely to live because they blend in with their environment and can hide from predators. on the contrary, mice of colors that stand out from the orange sand like black or white mice will be less likely to survive because predators can spot them easier. (the color of the mouse is based on genetics)

The example of the Deepwater Horizon illustrates which of the following?
A. There is no regulation in the oil industry.
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Answers

Answer:

he necessity for environmental regulations and improved clean-up plans is now being discussed and taken seriously.

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I don't know the answer but you can get help from this

Which of the following best describes an example of a community experiencing secondary succession? View Available Hint(s)for Part A This community is located within the rubble recently left by a retreating glacier. This community is on an exposed rock and consists of lichens and mosses that are the primary photosynthesizers in this system. This community consists of pioneer plant species that are altering soil properties. This community of grasses began growing after a fire killed the trees and shrubs previously at this site.

Answers

The option that best describes a community experiencing secondary succession is : ( D )This community of grasses began growing after a fire killed the trees and shrubs previously at this site

What is secondary succession ?

Secondary succession is the recolonization of a habitat by living organisms such as plants and animals after the habitat had experienced a major disaster such as flood or massive fire. Because The pioneer plants and animals might have been displaced or destroyed during the major disaster.

Hence we can conclude that The option that best describes a community experiencing secondary succession is This community of grasses began growing after a fire killed the trees and shrubs previously at this site.

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Please help.


There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the proportion of frogs with stripes. This is puzzling because the unstriped trait is recessive (s), and the striped patterns are due to dominant alleles (S). Also, natural selection seems to support the striped trait.
How do genetic factors most likely account for the proportion of traits in the frog population?

A. Most of the striped frogs and unstriped frogs have the genotype ss.


B. Most of the striped frogs have the genotype SS and the unstriped frogs have the genotype ss.


C. Most of the striped frogs have the genotype SS and the unstriped frogs have the genotype Ss.


D. Most of the striped frogs have the genotype Ss and the unstriped frogs have the genotype ss.

Answers

The answer is D (further explanation in the comments)

what is it light and how does it travel?

Answers

Answer:

Light is both waves and particles, which are described as packets of energy called photons. These waves, or photons, travel in narrow beams called rays. Only when light rays move from one medium to another, such as from air to water, their linear paths altered.

Explanation:

Hope this helps:) Goodluck!

Answer:

is a transactional reflection from a shiny object that travels through carbon monoxide

Average soil contains about what
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B. 45%
C. 90%

Answers

Answer: It would be B. 45%

How were scientists able to identify what gene was mutated when they studied families in Finland?

Answers

The scientists employed the use of  X-exome sequencing to identify rare gene mutations in the families.

What is X-exome sequencing?

This involves the process of  genes on chromosome X being identified through positional cloning and used ib various studies.

This was used to identify  rare gene mutations in the families in Finland thereby making it the most appropriate choice.

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Answer:

Oxygen is the CORRECT ANSWER

Explanation:

They produce oxygen by photosynthesis they take in carbon dioxide and make oxygen.

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Answer:

0.78

Explanation:

By using the Hardy-Weinberg equation.

Which process created the gases of earth’s first atmosphere?
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photosynthesis
weathering
photolysis

Answers

Is the answer is A. Volcanic activity

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A.Scientists can identify which genes are connected to specific adaptations.
B.DNA sequences are unique for each species and can be directly compared.
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D.An organism's DNA is constantly changing.

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B I think is the answer sorry if I’m wrong

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Answers

Answer:

possibly depending on what you want

Explanation:

why do veins have large lumens​

Answers

Veins carry unoxygenated blood towards the heart, away from tissues at low pressure so the lumen is large.

What are the similarities between dna and rna molecules? (4 points)

a double stranded helix, a phosphate group, and a hexose sugar

a nitrogenous base, a phosphate group, and a pentose sugar

a nitrogenous base, an amino acid, and a pentose sugar

a single stranded helix, a phosphate group, and a pentose sugar

Answers

Answer:

a nitrogenous base, an amino acid, and a pentose sugar

DNA and RNA molecules share several similarities in their structures. Both consist of a nitrogenous base, a phosphate group, and a pentose sugar. However, they differ in their helical structure, with DNA typically being double-stranded and RNA single-stranded. Thus, correct option is (B).

Ribonucleic acid and deoxyribonucleic acid are two chemicals that are crucial for genetics and other biological processes. Both of them contain pentose sugars, phosphate groups, and nitrogenous bases. Adenine (A), cytosine (C), and guanine (G) are the nitrogenous bases in both DNA and RNA; thymine (T) and uracil (U) are also present in both.

Although they both include a phosphate group and a pentose sugar (deoxyribose in DNA and ribose in RNA), the structural configurations of DNA and RNA are different. The two strands of DNA are typically kept together by base pairing to create a double helix. The majority of RNA, on the other hand, is single-stranded. Their functions and cellular processes are different as a result of this structural heterogeneity.

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.
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Answers

A change in the properties of groups of organisims over many generations.

Answer:

Biological evolution is the change in inherited traits over successive generations in populations of organisms

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Answers

Answer:The wavelength decreases

Explanation:

because im a god

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A. fungus-like and plant-like protists
B. plant-like protists
C. animal-like and fungus-like protists
D. plant-like and animal-like protists

Answers

C. animal-like and fungus-like protists

Which are characteristics of bryophytes? (Select all that apply.)

□ Most of them grow tall.

□ Most of them are vascular plants.

□ Most of them live in shady, moist, or humid areas.

□ Most of them need water to help reproduce.​

Answers

Answer:

​Explanation:

there u go

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Answers

Earth's orbit around the sun

Explanation:

The definition of an orbit is a circular shape, the rotation of one full circle or a range of experience. The 365 days it takes the earth to get around the sun is an example of the time it takes for a complete orbit or full circle around.

1. A 42,000 kg train car travelling at 10 m/s toward a stationary train car with a mass of 40,000 kg. After collision, the two sticked and moved together with the same speed. Solve for the final speed of the combined object after collision and identify their direction.​

Answers

Given,

A 42,000 kg train car travelling at 10 m/s toward a stationary train car with a mass of 40,000 kg.

What is momentum?

Momentum is a product of the mass of a particle and its velocity. Momentum is a vector quantity which means it has both magnitude and direction. Its formula = mass × velocity.

Solve for momentum:

M= (42,000kg)(40,000kg) / (10m/s)

M = 42,000 kilograms - 40,000 kilograms

M = 2,000kg

M = 2,000 kg ÷ 10m/s

= 200m/s

-Thus they collison at the same speed of 200m/s.

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James Surowiecki's analysis is consistent with the slogan that: A. too many cooks spoil the broth. B. birds of a feather flock together. C. two heads are better than one. D. opposites attract.

Answers

Answer C- two heads are better than one

James Surowiecki's analysis is consistent with the slogan that two heads are better than one and it is a proverb and there are several acronyms too. Thus, option C is correct.

What is acronym?

Acronym has been defined as the short form of long words such as very important person and the acronym of very important person has VIP. The word acronym has been used to denoted the short term of a word in which two or more than two words combined together to form new short word.

Acronym has been always starts with capital latter and the first word's letter is always capital. Capitalization has the most important part of writing as it has the rule of writing that the first latter of the word that starts a sentence must be capital or starts with capital latter.

The sentence has a group of sensible or meaningful word that combines together to form a complete and sense full sentence. The sentence has several type such as positive sentence, negative sentence, exclamatory sentence as well as introgetive sentence.

Therefore, James Surowiecki's analysis is consistent with the slogan that two heads are better than one and it is a proverb and there are several acronyms too. Thus, option C is correct.

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An enzyme controlled reaction was carries out at 36°C. After 3 minutes, 240 cm' of product had been
produced. Calculate the rate of reaction is cm/s

Answers

3minutes x 60 = 180secs
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Answers

Answer:

Proteins, fats, carbohydrates, vitamins link, minerals link, and water

Explanation:

They are nutrients in which everyone needs, your digestive system breaks nutrients into parts small enough for your body to absorb and use for energy, growth, and cell repair.

Answer:

Explanation:

nuitrent and fat

In the human life cycle

Answers

What's the rest of the question so I can answer it

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hurry and type the rest out pls

motion is needed for work to have been done true or false

Answers

Answer:

Ture

For work, in Science to be done a force must be exerted and there must be motion or displacement in the direction of the force

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resources; factors


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buildings; animals

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Resources and factors
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