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max2010maxim [7]
3 years ago
9

Please help asap!

Biology
1 answer:
Bad White [126]3 years ago
5 0
In a pedigree, a circle represents a female, and a square represents a male.
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Tay-Sachs disease is a lethal, autosomal recessive genetic disorder. If both parents are heterozygous carriers of the disease, w
rjkz [21]

Answer:

50%

Explanation:

Let's assume that the allele "T" gives the normal phenotype while the recessive allele "t" imparts the disease and is lethal in homozygous condition. The genotype of each of the two carrier parents would be "Tt". A cross between Tt and Tt would give the progeny in the following genotype ratio=

Tt x Tt= 1/4 TT: 1/2 Tt: 1/4 tt

Therefore, 1/2 or 50% progeny would be the carrier for the Tay-Sachs disease.

4 0
3 years ago
Evidence for sea floor spreading
Tju [1.3M]
The rocks near the mid-ocean ridge were younger then rock near trenches. Matching bands of magnetic rocks were found on either side of the mid-ocean ridge; bands like tree ring - record changes in earths magnetic field over time. Earthquake data showed oceanic crust is sinking on to the mantle at trenches.
5 0
3 years ago
Read 2 more answers
What are some of the differences and similarities between a plant cell and an animal cell
dlinn [17]
Plant cells have a cell wall and cell membrane... Animal cells have a cell membrane but no cell wall
7 0
3 years ago
The cytosol is best described as the The cytosol is best described as the area of the cell not occupied by the nucleus. three-di
lara31 [8.8K]

Answer:

The cytosol is best described as semifluid substance in which organelles are suspended.

Explanation:

Cells have different components. They can be divided in eukaryotic and prokaryotic. When it comes to the first type, they have a defined membrane for the nucleus. When it comes to the second ones, they have their nucleus in all the cytosol. <em>The cytosol is the space in the cell made of a semifluid subtance with different organelles suspended</em>.

Just to mention some of the organelles that can be there, we can find mitochondrion , endoplasmic reticulum , centriole , among others.

5 0
3 years ago
Replicate the following DNA sequence: CCC
hoa [83]

Answer:

GGG

Explanation:

use AT GC

opposite of C is G and since there's 3 c's you replicate and get 3 g's

6 0
3 years ago
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