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Harman [31]
3 years ago
9

What is nondisjunction , and what problems does it cause

Biology
2 answers:
Elden [556K]3 years ago
7 0
Chromosomes don't separate correctly and the gamete has too many or too few chromosomes. It can cause down syndrome.
Angelina_Jolie [31]3 years ago
5 0
The failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during nuclear division, usually resulting in an abnormal distribution of chromosomes in the daughter nuclei.
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DOMAINS AND KINGDOMS
iVinArrow [24]
For the first question, a unicellular eukaryote with autotrophic features (meaning it can produce its own food) will be from either Domain Bacteria and Domain Eukarya, but since Domain Bacteria is not in the choices, then Domain Eukarya is the answer. Domain Archaea are yes, unicellular organisms, but they are not eukaryotes and they do not possess autotrophic features. Domain Eukarya have photosynthetic protozoans (i.e. Diatoms).

For the second question, in Kingdom Fungi, you chose that fungi can either be unicellular or multicellular, which is true, for instance yeast and mushrooms respectively. Fungi are heterotrophic as they cannot produce their own food. The other answer is that fungi are eukaryotic organisms since their cells have a true nucleus and they belong to Domain Eukarya.

For the third question, in Kingdom Protista, you chose that protists can either be unicellular or multicellular, and this is true in the case of amoebas and kelp respectively. Protists can be both heterotrophic and autotrophic. The other answer is that protists are eukaryotic organisms since their cells have a true nucleus and they belong to Domain Eukarya.
8 0
4 years ago
A cubic box measure 60 cm on each side. Compute its volume.
svetlana [45]

Answer:

60³: 60x60x60x

216000....

5 0
3 years ago
Read 2 more answers
Why do waves increase in height as they approach the shore?
katrin [286]

Answer:

The water particles speed up as they approach land. The water's density decreases because it's warmer near the shore.

Explanation:

5 0
4 years ago
MULTIPLE CHOICE
Advocard [28]

Answer:

A and C

Explanation:

IM pretty sure anyway i just finished up my biology so im not 100% sure but i know it has to do with ammonia and nitrite or nitrate so thats my best guess.

3 0
3 years ago
Which of the following applies to skeletal muscle? Select all that apply. A : moves food and substances through the GI tract B :
Nikitich [7]
Skeletal muscle support and Movement. Skeletal muscles move the body. Skeletal muscle contractions pull on tendons, which are attached to bones. If contraction of the muscle causes the muscle to shorten, the bone and, thus, the body part will move. so your answer is D
8 0
3 years ago
Read 2 more answers
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