In an ecosystem, each trophic level receives energy from the level below it. What is the

A woman, S.R., had a maternal grandfather with hemophilia A (OMIM 306700), an X-linked recessive condition that reduces blood cl

Sidana [21]

Answer:

Hemophilia is a x-linked recessive inherited bleeding disorder. in this disease blood does not clot properly due to the decreased level of blood clotting factor VIII (8) or factor IX (9).

In x-linked recessive condition, the disease is transmitted from father (affected male) to his daughter and mother (affected female) to her son and skip of generation getting affected is also occurs.

there will be 50% chance of her (S.R.) each son to be affected with hemophilia.

Explanation:

Hemophilia is caused due to mutation of one gene which is responsible for the making of proteins of blood coagulation factor viii or ix. the affected person bleeds continuously from any injury and that can cause serious issues.

here,

grandfather of s.r is affected (xₐy) and grandmother is normal (xx) will produce

↓

s.r's mother who is a carrier (xₐx) [as xₐy and xx will produce 100% carrier xₐx daughter]

↓

s.r's mother is a carrier (xₐx) but her father is normal (xy) will produce,

↓

s.r who has 50% chance of being carrier (xₐx) and 50% chance of being normal (xx) [as she is the only child] and she has a normal (xy) partner, they will give,

↓

if s.r is a carrier (xₐx) then one of her son will be affected (xₐy) [as xₐx and xy =xₐy]
if s.r is normal (xx) then her son will be normal (xy) [as xx and xy will give xy]

here, 50% chance of her son to be affected with hemophilia [as S.R of being affected is more considerable].

8 0

3 years ago

Level of body organization occupied by a bone

marusya05 [52]

A bone is tissue. It forms a part of the skeletal system which is made up bones, joints, ligaments and cartilage. Cells work together in groups known as tissues. A tissue is defined as a group of similar cells working together to carry out a certain task. Examples are skin, bone, blood. Tissues in turn are grouped together to form organs. An organ is defined as a group of tissues that work together to carry out a certain task . Examples are heart, lungs, liver.

8 0

2 years ago

For every action or force in nature there is an equal and opposite reaction

Inessa05 [86]

Answer:

This is true.

Explanation:

6 0

2 years ago

Carrot slices placed in a 0.2 M salt solution for several hours become flaccid (limp). Carrot slices placed in fresh water for s

SpyIntel [72]

<h2>Carrot in 0.2M salt solution</h2>

Explanation:

Carrot cuts put in 0.2M salt answer for a few hours gets flabby (limp).
Carrot cuts set in freshwater for a few hours gets turgid (firm). From this, we can conclude that such as.

Freshwater is hypertonic and the salt arrangement is hypotonic to the cells of the carrot cuts.
Freshwater and salt arrangement are both hypotonic to the cells of the carrot cuts.
Freshwater is isotonic and the salt arrangement is hypertonic to the cells of the carrot cuts.
Freshwater is hypotonic and the salt arrangement is hypertonic to the cells of the carrot cuts.
Freshwater and the salt arrangement are both hypertonic to the cells of the carrot cuts.

5 0

2 years ago

A group of nursing students are reviewing the functions of white blood cells. The students demonstrate an understanding of the i

alexdok [17]

Answer:

Eosinophils

Explanation:

The exact role of eosinophils in your body isn't clear, but they're usually found attacking allergic diseases and certain infections

6 0

2 years ago