1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Butoxors [25]
3 years ago
10

Sickle cell anemia and albinism are both recessive traits in humans. Imagine that a couple, already pregnant with fraternal twin

s, has just learned that they (the couple) are both heterozygous for both of these traits. As the couple's genetic counselor, the couple asks you what is the probability of having both of the twins be albino and have sickle-cell anemia.
Biology
1 answer:
lidiya [134]3 years ago
7 0

Answer:

81/256

Explanation:

By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.  

Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.

You might be interested in
Observation of Diffusion Rate in Relation to Cell Size
vesna_86 [32]

Explanation:

new cells rather than growing bigger. Why is this ?

There are two main reasons why cells divide rather than continuing to grow larger and larger: ... If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane. Cell Division. Cell division is the process by which cellular material is divided between two new daughter cells.

Why aren't you made of a few dozen, or a

few hundred cells, instead of trillions?

if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume ratios, or cease to function. That is why cells are so small.

Why don't single-celled organisms like amoebas and paramecia grow

as big as a human?     again The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.

i belive this is just the introduction to the project but here

4 0
3 years ago
Why were physical activity and caffeine and alcohol intake the controlled variables?
Deffense [45]
<span>Controlled variable is a variable that was made constant in the research. That was because the controlled variables can influence the dependent or independent variable. If the variables is not made constant, it can alter the research result and made it invalid.

In this case, </span>the caffeine and alcohol intake might alter the physical activity or the blood glucose so it should be controlled.
4 0
3 years ago
In plant, cell that transport water against the force of gravity are found to contain many more mitochondria than do some other
Anna [14]
For this question I'm not too sure what you're asking because cells that transport water are basically xylem cells and these cells are hollow with nothing in them, and they transport water against gravity because of transpiration pull, capillary action and root pressure.
The cells that I know of with many mitochondria for transport would be the phloem so that the mitochondria can carry out cellular respiration to release energy for the translocation of sucrose.
4 0
3 years ago
What is a cold air mass ?
kolbaska11 [484]
Colder air masses are temped Polar or Arctic. While warmer air masses are termed Tropical. Continental and Superior air masses are dry while maritime monsoon air masses are moist. Weather fronts separate air ,asses with different density (Temperature and/or Moisture) characteristics.

I Hope This Helped!
5 0
3 years ago
The ability of trees to transport water hundreds of feet up from the roots is at least partially due to...
spin [16.1K]

Answer:

option B. cohesion..........tree.

4 0
3 years ago
Other questions:
  • While assessing an older adult during a regular health checkup, a nurse finds signs of elder abuse. which physical findings woul
    15·1 answer
  • Proteins are polymers made of amino acids.<br> true or false?
    12·2 answers
  • Which of the following is a reason why early living organisms on Earth could not have survived on the surface? 1. the lack of an
    9·1 answer
  • A certain biome is one of the largest in the world in terms of geographic area. Spruces, pines, and other conifers are abundant
    12·1 answer
  • Why does DNA make a good molecule for storing information
    11·1 answer
  • What are two other advantages of using herbicide resistant gm crops?
    11·1 answer
  • 4) If an object of 40 kg is moving east at 20 m/s and collides with a 20 kg object moving along the same vector at 10 m/s, what
    7·2 answers
  • Is this correct? Please help asap tysm
    7·1 answer
  • What is the control group of plants can hear music or sound
    8·1 answer
  • Peter and rosemary grant began studying the galapagos finches in 1973. For about 40 years, they studied the finches on daphne ma
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!