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Elena-2011 [213]
3 years ago
5

When oxygen is available, a cell will begin the Krebs cycle after

Biology
1 answer:
lozanna [386]3 years ago
7 0
The correct answer is B. Glycolysis

It is a process that deals with dissolving sugars which leads directly into the Krebs Cycles.
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Why do some scientists now argue a pushing, not a pulling, is behind the Atlantic’s slow expansion?
soldier1979 [14.2K]
Because the land masses are getting closer not further apart
6 0
2 years ago
Identify the correct statements about Lesch-Nyhan syndrome.
Misha Larkins [42]

Answer:

a.

c.

Explanation:

Lesch Nyhan syndrome is characterized by behavioral and neurological abnormalities, and excess uric acid production in the body. It occurs in males, almost exclusively.

Changes (mutations) in the HPRT1 gene causes Lesch Nyhan syndrome and is inherited in a recessive X-linked way. Several symptoms of Lesch Nyhan syndrome are Inflammatory arthritis (gout),  involuntary movements, self-injury and kidney stones.

Hence, the correct option are a. and c.

4 0
3 years ago
4) Name the type of symbiotic relationship in which the host is harmed. Give two examples.
Marina86 [1]
Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism.

Mutualism

Mutualism is a symbiotic relationship in which both species benefit. An example of mutualism involves goby fish and shrimp
7 0
2 years ago
The purpose of a control in a scientific experiment is to
WINSTONCH [101]
Observation designed to minimize the effects of variables other than the independent variable.
4 0
3 years ago
Read 2 more answers
Place the events in the correct order:
Alecsey [184]

Answer:

1. Chromatin condense into chromosomes.

4. Homologous chromosomes pair up (formation of tetrads).

5. Homologous chromosomes separate and move to poles.

2. Sister chromatids separate.

3. Chromosomes unravel in to chromatin.

Explanation:

This question portrays the process of meiosis in a cell. The ordered sequence of events in the options are:

1. Chromatin condense into chromosomes - This process occurs in the Prophase stage. Prior to the cell division, the nuclear material is found as Chromatin material. This Chromatin material then undergoes condensation to form visible chromosomes.

4. Homologous chromosomes pair up (formation of tetrads) - This process also occurs during the Prophase stage of meiosis I. In this stage, homologous chromosomes (similar but non-identical chromosomes received from each parent) are paired up side by side to form a structure known as TETRAD or BIVALENT.

5. Homologous chromosomes separate and move to poles - This process characterizes the Anaphase stage of meiosis I. Homologous chromosomes are pulled apart to opposite poles of the cell by spindle microtubules.

2. Sister chromatids separate - After meiosis I, meiosis II involving sister chromatids instead of homologous chromosomes follows. In the Anaphase stage of meiosis II specifically, sister chromatids are pulled apart towards opposite poles of the cell.

3. Chromosomes unravel in to chromatin - After the whole division process i.e. karyokinesis (division of the nuclear material), the chromosomes begin to unravel to form the CHROMATIN threads once again. This process occurs in the Telophase stage of meiosis.

5 0
3 years ago
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