In pedigree B, how can unaffected parents have an affected child?

Answers

Answer 1

Answer:

The unaffected mother, who is marrying in, does not carry an allele for the disease; so the affected child inherits an allele only from the affected father. No child could be affected by a single autosomal recessive allele, or X-linked recessive allele, so the trait is dominant

Answer 2

Answer:

The childs mother could be a carrier without knowing it which would create the couple to have a child thats affected.

Explanation:


Related Questions

A scientist wants to know why the honeybee population is declining. Which step would the scientist MOST LIKELY do first?


A. Conduct an experiment to see if increased pollution is causing a decrease in the honeybee population.
B. Communicate the question to as many other scientists as possible so that they can discuss it.
C. Observe the problem and make a hypothesis about what is causing it.
D. Research to see if there is already a widely accepted explanation.

Answers

Research to see if there is already a widely accepted explanation.

Explanation:

Because if the scientist's problem is already solved and accepted he doesn't have to waste his time .

Pls state lamarck's theory​

Answers

Answer:

Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring

What is the role of mitochondria in eukaryotic cells? A. to transport materials throughout the cell. B. to provide structure and mechanical support for the cell
c. to regulate the flow of materials in and out of the cell.
D. to generate chemical energy that powers the cell

Answers

Cell membrane

Rough endoplas... reticulum

Smooth endoplas... reticulum

Flagellum

See more

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Searches related to What is the role of mitochondria in eukaryotic cells? A. to transport materials throughout the cell. B. to provide structure and mechanical support for the cell c. to regulate the flow of materials in and out of the cell. D. to generate chemical energy that powers the cell

ribosomes

prokaryotic cells

which of the following occurs in the nucleus in a eukaryotic cell

Explanation:

Answer:

D. to generate chemical energy that powers the cell

What would happen to sleet if the colder air below the cloud were replaced with warm air?

(A) The temperature below the clouds does not affect the temperature of the precipitation falling.
(B) The sleet would change state to liquid water and would fall as rain drops from the sky.
(C) The warm air would keep the pellets in the same state, and they would continue to fall in a solid state.
(D) If the colder air were replaced with warm air, the sleet pellets would change to snowflakes in a solid state.

Answers

Answer:

(D) If the colder air were replaced with warm air, the sleet pellets would change to snowflakes in a solid state.

Answer:

B

Explanation:

Under the right conditions, a seed can germinate in the ground. What is the best synonym for "germinate?"​

Answers

Answer:

sprout, put forth shoots, shoot, shoot up, bud, put forth buds, develop buds, form buds.

develop, grow, spring up, swell.

rare burgeon, vegetate, pullulate.

Hope this helps :-)

How are cancer cells different from healthy cells?

Answers

Answer:

here

Explanation:

one one important difference is that cancer cells are less specialized than normal cells there is where normal cells mature into very distinct cell types with specific functions cancer cells do not have specific functions

Which one of the following organisms IS EATEN BY AN OMNIVORE in this food web?

If you don’t know the answer please don’t guess bc this is ixl and it’ll start me over.

Answers

Answer:

the cytoplankton

Explanation:

answer.
1
A DNA nucleotide consists of three smaller units.
Which type of biomolecule represents one of these
smaller units?
A Carbohydrate
B Lipid
C Protein
D Nucleic acid

Answers

Answer: Carbohydrate

Explanation: You may be familiar with the sugar-phosphate backbone, which just serves as structural framework for the DNA strand. Phosphate sugars are carbohydrates that link to phosphates and nitrogenous bases to create a helix.

brain liest for whoever does all!!

Answers

Answer:

Key points. Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.

1. cell

2. tissue

3. organ

4. organ system

5. organism

The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Seeds that are planted upside down are still able to grow into mature plants. Which explanation
best explains this phenomenon (a)The roots change into branches in the branches turn to roots(b) The roots grow towards the force of gravity and the stem goes away(c)The plant will become a smaller version of a mature plant(d) roots always grow toward the dark and the stem grows toward the light

Answers

The explanation that best explains this phenomenon is: the roots grow towards the force of gravity and the stem goes away

WHAT IS GEOTROPISM?

The parts of a plant can be divided into shoot and roots. The root of the plant is the part that grows below the ground surface in order to anchor the plant.

When a seed germinates, the root part of that seed grows towards gravity i.e exhibits geotropism while the shoot part grows away from gravity i.e. upwards.

Hence, if a seed is planted upside down, it will still grow into an erect mature plant because the root will grow downwards towards gravity (positive geotropism) while the stem grows upward away from gravity (negative geotropism).

Learn more about gravity at: https://brainly.com/question/1479537

Where does the energy for photosynthesis come from?



What 2 raw materials are needed by plants in order to preform photosynthesis?​

Answers

answer: The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf.

Explanation:

hope this help

In a chemical reaction, the chemicals you start with (those in the rectangle) are called ____________________. The ones you end up with (in the circle) are called _________________________.

Answers

Answer:reactant and product

Explanation:

Not all genes share the same?

Answers

Answer:

Not all gnes share the same code

Explanation:

Hope this helps!! :)

True/False: Plants take phosphorous directly out of the atmosphere.

Answers

Answer:

True

Explanation:

the way the are able to take pictures, its from space/the atmosphere

PLEASE HELP!!!
How do animals and plants interact in terms of the two gases involved in photosynthesis?

Answers

Answer:

Explanation:

Photosynthesis use carbon dioxide and water to assemble carbohydrate molecules and release oxygen into the air easy

Please Help I NEED IT ASAP! Systems, including cars, require an energy input. Where does a car as a system, gets its energy?

Answers

Answer:

Gas (Chemical Energy)

Explanation:

Cars run on gas. They convert the chemical energy in the gas to motion. This is where the system gets its energy. (Unless your system is the car and it moves beacuse is on a hill in which case gravitational potential energy transfers energy to this system).

What happened to food in the small intestine check all that apply

Answers

Answer:

the nutrients in the food is absorbed

Explanation:

Answer:

Explanation:

Blood in the villi helps to absorb nutrients and sugar molecules

Nutrients from food are absorbed

Fat is broken down into smaller droplets

Explain how salinity can make water move

Answers

Answer:

Through concentration gradients and a semi-permeable membrane.

Explanation:

Imagine a semi-permeable membrane splitting a beaker into two sides which only water can pass through and salt cannot.

One side is filled with much more salty water than the other. (the saltiness, not the amount of water).

Since the salt cannot pass through the membrane, one side's salt is much more concentrated than the other.

In an effort to restore equilibrium, more water passes to the saltier side to balance out the ratio of water : salt.

Since one side has more salt, more water is needed to balance that out, and hence water moves towards the saltier side.

Hope this helped!

Why do we need brazillion rainforeset pleease help

Answers

Answer:

The Amazon rainforest plays an important part in regulating the world's oxygen and carbon cycles. It produces roughly six percent of the world's oxygen and has long been thought to act as a carbon sink, meaning it readily absorbs large amounts of carbon dioxide from the atmosphere.

Answer:

Found this on google, "The Amazon rainforest plays an important part in regulating the world's oxygen and carbon cycles. It produces roughly six percent of the world's oxygen and has long been thought to act as a carbon sink, meaning it readily absorbs large amounts of carbon dioxide from the atmosphere."

Hope this helps, have a great day/night, and stay safe!

_____ allow the stomach to stretch. A. Gastric glands B. Palatines C. Gastric rugae D. Villi

Answers

Answer:

C) Gastric Rugae

Explanation:

Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.

Answer:

C. Gastric Rugae

Explanation:

The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.

You are observing an unknown organism under the microscope. By careful observation you have found that the organism is unicellular and prokaryotic in nature. Which hypothesis among the following is the likely explanation for the observation?

a. The unknown organism is an animal cell.
b. The unknown organism is a fungal cell.
c. The unknown organism is a plant cell.
d. The unknown organism is a bacteria.

Answers

Answer:

d. The unknown organism is a bacteria.

Explanation:

Describe the process of photosynthesis,include what is needed and what is produced.Provide an explanation as to why photosynthesis is needed for plants to maintain homeostasis.

Answers

Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.

Answer:

The process by which plants are prepared their own food by taking carbon dioxide from air and water from roots in the presence of sunlight and chlorophyll is called photosynthesis.they produced oxygen

6Co2 + 6H2o =C6H12O6 + 6O2

Explanation:

photosynthesis is ascential for their growth & development

How is the 7th Street Public Market helping farmers to further develop their careers?

Answers

Answer:

By celebrating the food culture and promote local and regional farmers.

Explanation:

the 7th Street Public Market helping farmers to develop their careers because this market aim is to promote local and regional farmers, food artisans and entrepreneurs by celebrating the food culture of the Carolinas. 7th Street Public Market is an urban food destination located in the center of Charlotte's Center City. So by promoting local and regional farmers, the development of careers of farmers occurs.

what position will kamala harris hold on sunday 20,2021

Answers

Answer:

Vice President?

Explanation:

Answer:

vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday

Explanation:

Where is the chemical energy stored in ATP?
o In the chemical bonds between the first and second phosphate
o In the chemical bonds between the second and third phosphate
o In the chemical bonds between adenine and ribose
o ATP does not store energy
Help is appreciated! Thanks in advance! Will give 100 points!

Answers

Answer:

o In the chemical bonds between adenine and ribose

Explanation:

this is correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What are some of the ways that parasites have adapted to transmission between hosts and resisting the host’s attempts to get rid of the parasite? How do these particular developments help the parasite?

Answers

Answer for you
Organisms depend on other species for resources such as nutrients. Parasites live in or on another organism, which is called the host. The parasite takes what it needs from the host but the host receives nothing in return and often suffers as a result. An example of parasitism is the relationship between fleas and dogs. Fleas live on dogs and feed on their blood. The dog receives no benefit but the fleas are provided with food and a habitat. Fleas attach themselves to hairs and can spread from one host to another by jumping huge distances.

Please help me, I’m sleepy and I don’t know anything right now

Answers

Answer:

absolute age

Explanation:

Answer:

absolute age. hope this helps!

Explanation:

~evita

What percent of energy is transferred between the levels indicated by the blue arrows?
O 50 percent
O 90 percent
O 100 percent
O 10 percent

Answers

Answer:

D

Explanation:

10 percent, yes

C. COMPLETION

1. Integrated post management refers to the application of many different methods used together to_____

2. The transformation of the American Southwest from desert to irrigated lands was made possible, in part,

by water control projects on the _____ River.

3. My studying agriscience, you open the door to exciting educational programs that may lead to__

Answers

Answer:

1. Control insects, diseases, rodents, and other pests.

2. Colorado.

3. Professional satisfaction and prosperity.

Explanation:

Agriscience can be defined as the application of modern technologies and various scientific principles in order to improve agriculture.

Some of the importance and significance of agriscience includes;

1. Integrated post management refers to the application of many different methods used together to control insects, diseases, rodents, and other pests.

2. The transformation of the American Southwest from desert to irrigated lands was made possible, in part, by water control projects on the Colorado River.

3. By studying agriscience, you open the door to exciting educational programs that may lead to professional satisfaction and prosperity.

A human may go from being microscopic to being six feet tall in less than 16 years. What change on the cellular level accounts for most of the change in size?

Answers

Answer: the number of cells increases

Explanation:

The changes experienced by a human, from birth to 16 years old in form of growth is facilitated by the increase in the number of cells.

Most tissues in the human body grow by increasing their cell number, but this growth is being monitored and regulated to maintain a balance between the different tissues.

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