Indicate whether the following tissues are haploid, diploid, unicellular or mult
ID: 102507 • Letter: I
Question
Indicate whether the following tissues are haploid, diploid, unicellular or multicellular
-
A.
B.
C.
D.
megaspore
-
A.
B.
C.
D.
embryo
-
A.
B.
C.
D.
megasporangium
-
A.
B.
C.
D.
integument
-
A.
B.
C.
D.
gametophyte
-
A.
B.
C.
D.
egg
-
A.
B.
C.
D.
zygote
-
A.
B.
C.
D.
fern frond/leaf
A.
haploid multicellular
B.
diploid, unicellular
C.
diploid multicellular
D.
haploid, unicellular
Explanation / Answer
Answer:1-A-Haploid
A megaspore mother cell or megasporocyte ,is a diploid cell in plants in which meiosis will occur ,
resulting in the production of four haploid megaspores.
Answer2-B-Diploid
Sex cells are haploid.Once fertilization occurs with the union of sperm and ovum ,the result is a diploid embryo.
Answer3-A sporangium is an enclosure in which spores are formed.It can be composed of a single cell or can be multicellular.Sporangia can produce spores by mitosis.,but in nearly all plants and many fungi,sporangia are the site of meiosis and produce genetically different haploid spores.
Answer4-B-Diploid
Answer5-Gametophyte is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes.
Answer6-A-Haploid
Answer7-B-Diploid
Answer8-In a fern life cycle a diploid sporophyte phase produces haploid spores by meiosis.A spore grows into a haploid gametophyte by mitosis.It is multicellular.