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k0ka [10]
3 years ago
6

The viruses attenuated vaccine?

Biology
1 answer:
vodka [1.7K]3 years ago
7 0

Answer:

B

Explanation:

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Which of the following do NOT have membrane bound organelles?
Volgvan

Answer:

Prokaryotes...........

7 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
The argument that each individual member of a species transforms itself to meet the challenges of a changed environment through
svlad2 [7]

Answer:

Jean Baptiste de Lamarck

Explanation:

i found this online

8 0
3 years ago
Choose the correct climate for: grasslands near the equator
jarptica [38.1K]
It's either A. or C. because since its near the equator it's not going to be dry.
7 0
3 years ago
A plant with a white flower was crossed with a plant with red flowers . All of the offspring had pink flowers . Which of these t
maw [93]
Go online and look up ressesive and dominate Gene's and Gregory Mendel he crossbreed plants such as what you have described and have found some interesting results that do include your red and white crossbreeding to create pink. this is usually called a Punnet Square.

dominate gene
Red = R
White = W
recessive gene
Red=r
White = w

pink is either a mixture of recessive and dominant Gene's or one dominant and one recessive
3 0
3 years ago
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