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Goshia [24]
3 years ago
6

About 950,000 years ago there was a huge change in ocean currents on Earth.

Biology
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

vvgghhuyrirproejsjsif

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Assuming DNA is replicated correctly (so there are no mutations),
gavmur [86]

Answer:

None of the choices would lead to all identical gametes.

Explanation:

Gametes are sex cells produced by sexually reproducing organims via a process of cell division called MEIOSIS. Meiosis is a cell division process which produces four (4) daughter cells (gametes), which are genetically different from the parent cell.

The difference in genetical content is as a result of a process unique to only meiosis called CROSSING-OVER OR RECOMBINATION. This process ensures that the genetic content of the gametes are altered. Hence, since gamete formation is done via meiosis, none of the scenarios in the option will lead to all identical gametes.

7 0
2 years ago
How do mitosis and meiosis differ in the division of genetic composition?
olganol [36]
The answer to this question may be the second one," Mitosis produces two genetically identical daughter cells but meiosis produces four genetically different daughter cells."

6 0
3 years ago
Read 2 more answers
A unique trait that is used to construct a cladogram showing relationships between organisms is called a
grin007 [14]
It is called a derived character. Hope this helps! (:
7 0
3 years ago
Starch is made up of:
lesantik [10]

Answer:

units of C 6 H 12 O 6

Explanation:

Starch is a polymer of billions of glucose units joined through a condensation reaction that splits out molecule of water. Starch is an important part of our food belonging to the category of carbohydrates. It is found in cereals and potatoes.

Starch can be in two forms based on the their structure and some other differences:

1) Amylose- straight chain polymer

2)Amylopectin- Branched chain polymer

You can see the structure of starch with glucose monomers for better understanding in the image.


Hope it helps!



8 0
3 years ago
Identify the substances that can readily pass through the inner mitochondrial membrane.
KIM [24]

Answer:

A,C E

Explanation:

The inner membrane of the mitochondria separate the matrix of the mitochondria from the cytosol(inner membrane space.). It is invaginated  folded inwards  to form the critae. This is an adaptive feature to increase the surface area for biochemical reaction in the mitochondria.

The invagination gives two compartments the inner mitochondria also creates the outer intermembrane space and the inner matrix

These are the substances that can pass freely the inner membrane of the mitochondria.Pyruvate and H+ can not pass through.Specifically,it is not preamble to H+ because, hydrogen ions are needed to generate the electrochemical gradients needed for the chemical energy  for phosphorylation of ADP by  P to form ATPs by the enzyme ATPase synthase.If the inner membrane is permeable to H+ the electochemical gradient will not be produced, and therefore ATPs productions stops.

O2 needs to pass through the inner membrane because it it the final electron acceptor. Therefore if not allowed to pass through oxidative phosphorylation  and ETC will nor occur.

CO2 must pass through because its accumulation will increase the acidity of the inner  mitochondria

5 0
3 years ago
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