The proteins that hold homologous chromosomes after replication are called Select one: a. Kinetochores b. Homologous chromosomes are NOT...

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Biology

The proteins that hold homologous chromosomes after replicationare called
Select one:
a. Kinetochores
b. Homologous chromosomes are NOT held together afterreplication!
c. Centromeres
d. Cohesins
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The ratio of a testcross between an organism with unknowngenotype and its homozygous recessive counterpart is 1:1 (samenumber of heterozygous and homozygous recessive offsprings). Basedon this ratio, what can you deduce about the genotype of theunknown organism?
Select one:
a. The unknown organism is homozygous dominant
b. There is no way to tell from the information given. Therecould be many possibilities
c. The unknown organism is heterozygous
d. The unknown organism is homozygous recessive
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Transcription factors tend to bind to DNA at the level of themajor grooves
Select one:
a. True
b. False
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Typically, the longest phase of the cell cycle is
Select one:
a. Prophase
b. The G1 phase
c. The G2 phase
d. The S phase
e. Metaphase
f. Anaphase
g. Telophase

Answer & Explanation Solved by verified expert

3.6 Ratings (395 Votes)

1 Homologous chromosomes replicate and form four arms of sister chromatids and they are held together by centromeres Hence the answer is centromere 2 The test cross is performed See Answer

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